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: Lions have ____ distinct vocalizations including roars, grunts and growls.\Question: Choose the right answer from options given a) eight b) six c) four d) nine

SOLUTION: d

PROBLEM: Cleavage is good in ____ directions forming cubes.\Question: Choose the right answer from options given a) two b) three c) six d) zero

SOLUTION: b

PROBLEM: Fats pack nine calories per gram compared to ____ for carbohydrates.\Question: Choose the right answer from options given a) nine b) two c) six d) four

SOLUTION:
d