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').

[Q]: Cannons are a three ball shot from a corner spot or on the ____ yard line.\Question: Choose the right answer from options given a) no b) four c) five d) one
[A]: d


[Q]: Circles mark the approximate locations of ____ recently discovered solar systems.\Question: Choose the right answer from options given a) four b) no c) zero d) nine
[A]: a


[Q]: Cells divide in ____ stages .\Question: Choose the right answer from options given a) nine b) two c) six d) no
[A]:
b