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: Most internal parasites are specific to one or ____ species.\Question: Choose the right answer from options given a) seven b) three c) two d) five

SOLUTION: c

PROBLEM: Nymphs feed and mature through ____ instars in about six to eight weeks.\Question: Choose the right answer from options given a) four b) eight c) five d) no

SOLUTION: c

PROBLEM: Chinchillas become sexually mature when they are around ____ months old.\Question: Choose the right answer from options given a) six b) no c) four d) eight

SOLUTION:
d