If k is an integer and 0.00010101 x 10^k is greater than 1000, what is the least possible value of k?  Choose the most appropriate option
A) 6  B) 7  C) 8  D) 9  E) 10

Rationale: "0.00010101 * 10 ^ k > 1000 we need to move the decimal point to the right 7 places to get 1010.1 this is equivalent to multiplying by 10 ^ 7 . the answer is b ."
Answer: B