Please explain the logics and steps to solve this problem below thank you TT

5, 10, 15, ..., 100

If each term in the sequence above is 5 more than the previous term, how many times does the digit zero appear in the sequence?

(A) 9 (B) 10 (C) 11 (D) 50 (E) 51


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the answer is number C) 11
however the answer I've chosen was 50