TASK DEFINITION: Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').
PROBLEM: Habitat destruction is a concern for all ____ gorilla subspecies.\Question: Choose the right answer from options given a) no b) four c) three d) five

SOLUTION: b

PROBLEM: Some homeopathic remedies are so dilute, ____ molecules of the healing substance remain.\Question: Choose the right answer from options given a) ten b) three c) one d) no

SOLUTION: d

PROBLEM: Sawflies have ____ or more pair of prolegs, while caterpillars have less than five.\Question: Choose the right answer from options given a) ten b) one c) seven d) five

SOLUTION:
d