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: Bacteria come in ____ basic shapes.\Question: Choose the right answer from options given a) five b) one c) three d) nine

SOLUTION: c

PROBLEM: Tardigrades are microscopic, water-dwelling, segmented animals with ____ legs.\Question: Choose the right answer from options given a) eight b) nine c) one d) seven

SOLUTION: a

PROBLEM: Most birds have ____ ranges of flying speeds.\Question: Choose the right answer from options given a) two b) three c) one d) eight

SOLUTION:
a