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: Mountain goats have ____ sharp horns.\Question: Choose the right answer from options given a) two b) six c) ten d) four

SOLUTION: a

PROBLEM: Manatees swim two to ____ miles per hour.\Question: Choose the right answer from options given a) no b) six c) five d) zero

SOLUTION: b

PROBLEM: Cell walls form around each group of ____ nuclei.\Question: Choose the right answer from options given a) two b) one c) zero d) three

SOLUTION:
d