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: Piglets normally grow about half their potential growth rate from birth to ____ weeks of age.\Question: Choose the right answer from options given a) zero b) no c) five d) three

SOLUTION: d

PROBLEM: Metabolism have ____ stages-catabolism and anabolism.\Question: Choose the right answer from options given a) nine b) two c) five d) three

SOLUTION: b

PROBLEM: Many soils have ____ or more distinct layers or horizons.\Question: Choose the right answer from options given a) one b) two c) five d) four

SOLUTION:
b