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: Ruminants have an even number of toes on each foot and a stomach with either three or ____ chambers.\Question: Choose the right answer from options given a) four b) two c) seven d) five

SOLUTION: a

PROBLEM: Big bluestem grows up to ____ feet tall.\Question: Choose the right answer from options given a) seven b) no c) nine d) eight

SOLUTION: c

PROBLEM: Viruses can survive on such surfaces for up to ____ hours.\Question: Choose the right answer from options given a) six b) two c) three d) nine

SOLUTION:
c