When technical writers are trying to decide whether to use visual aids, what three questions should they be asking themselves

Which word correctly completes the sentence? both tracks are visible in the snow. a. deers' b. deer's c. deers 2.which word correctly completes the sentence? a huge diamond decorated the crown. a. kings' b. king's c. kings 3.which word correctly completes the sentence? at the old library, many of the covers were worn or damaged. a. books' b. books c. book's 4.which word correctly completes the sentence? in the traffic jam, cars moved at a pace. a. turtles' b. turtle's c. turtles plz asap