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: Illiteracy is ____ percent higher among women than men.\Question: Choose the right answer from options given a) seven b) six c) zero d) five

SOLUTION: a

PROBLEM: Circles mark the approximate locations of ____ recently discovered solar systems.\Question: Choose the right answer from options given a) four b) no c) zero d) nine

SOLUTION: a

PROBLEM: Stalks can grow up to ____ feet tall.\Question: Choose the right answer from options given a) two b) six c) ten d) one

SOLUTION:
c