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: Acoustic guitars come in ____ types.\Question: Choose the right answer from options given a) two b) ten c) one d) four

SOLUTION: a

PROBLEM: Amelia Island is the only territory in American history to serve under ____ flags.\Question: Choose the right answer from options given a) eight b) no c) six d) five

SOLUTION: a

PROBLEM: Skittles come in ____ colors.\Question: Choose the right answer from options given a) no b) five c) one d) eight

SOLUTION:
b