In the following algorithm for making black-and-white photographs, identify the steps th...

In the following algorithm for making black-and-white photographs, identify the steps that are branches (selection), loops, or references to subalgorithms defined elsewhere.

a. Mix developer according to instructions on package.

b. Pour developer into tray.

c. Mix stop bath according to instructions on package.

d. Pour stop bath into tray.

e. Mix fixer according to instructions on package.

f. Pour fixer into tray.

g. Turn off white lights and turn on safelight.

h. Place negative in enlarger and turn on.

i. Adjust size of image and focus, and then turn off enlarger.

j. Remove one piece of printing paper from paper safe and place in enlarging easel. k. Turn enlarger on for 30 seconds and then off.

l. Place paper in developer for 1 minute, stop bath for 30 seconds, and fixer for 1 minute. m. Turn on white lights and inspect the first print, and then turn off white lights.

n1. If first print is too light: Remove one piece of paper from paper safe, place on easel, and expose for 60 seconds to create a too-dark print. Then place in developer for 1 minute, stop bath for 30 seconds, and fixer for 1 minute.

n2. If first print is too dark: Remove one piece of paper from paper safe, place on easel, and expose for 15 seconds to create a too-light print. Then place in developer for 1 minute, stop bath for 30 seconds, and fixer for 1 minute.

n3. If first print is about right: Remove one piece of paper from paper safe, place on easel, and expose for 60 seconds to create a too-dark print. Then place in developer for 1 minute, stop bath for 30 seconds, and fixer for 1 minute. Remove one piece of paper from paper safe, place on easel, and expose for 15 seconds to create a too-light print. Then place in developer for 1 minute, stop bath for 30 seconds, and fixer for 1 minute.

o. Analyze too-light and too-dark prints to estimate base exposure time, and then identify highlights and shadows that require less or more exposure and estimate the necessary time for each area.

p. Remove one piece of paper from paper safe, place on easel, and expose for base exposure time, covering shadow areas for estimated time, and then cover entire print except for highlight areas, which are further exposed as estimated. Then place print in developer for 1 minute, stop bath for 30 seconds, and fixer for 1 minute.

q. Analyze print from Step p and adjust estimates of times as appropriate.

r. Repeat Steps p and q until a print is obtained with the desired exposure.

s. Document exposure times that result in desired print.

t. Remove one piece of paper from paper safe, place on easel, and expose according to documentation from Steps. Then place in developer for 1 minute, stop bath for 30 seconds, and fixer for 4 minutes. Place print in print washer.

u. Repeat Step t to create as many prints as needed.

v. Wash all prints for 1 hour.

w. Place prints in print dryer.