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').

Input: Consider Input: Human malaria is caused by ____ species of Plasmodium . .\Question: Choose the right answer from options given a) six b) ten c) seven d) four

Output: d


Input: Consider Input: Baby elephants are usually dependent on mother s milk for at least ____ years.\Question: Choose the right answer from options given a) six b) three c) two d) seven

Output: b


Input: Consider Input: Turken hens are interesting in that they have virtually ____ wattles or comb.\Question: Choose the right answer from options given a) three b) no c) zero d) five


Output: b