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: Popular racism seems most prevalent in Italy which saw ____ deaths at the hands of racists.\Question: Choose the right answer from options given a) five b) two c) one d) four

SOLUTION: d

PROBLEM: Classes play ____ distinct roles in object-oriented programming.\Question: Choose the right answer from options given a) eight b) zero c) two d) no

SOLUTION: c

PROBLEM: Some steam locomotives utilize ____ sets of engines.\Question: Choose the right answer from options given a) three b) seven c) one d) zero

SOLUTION:
a