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: Polyester has ____ favorable properties.\Question: Choose the right answer from options given a) four b) two c) seven d) six

SOLUTION: b

PROBLEM: Calves can browse and follow their mother at three weeks old and are weaned at ____ months.\Question: Choose the right answer from options given a) five b) seven c) four d) three

SOLUTION: a

PROBLEM: Implants are an extremely effective form of contraception and can last for up to ____ years.\Question: Choose the right answer from options given a) four b) six c) one d) five

SOLUTION:
d