1.

Which of the following is the prime number series from 1 to 20?

A. 1, 2, 3, 5, 7, 11, 13, 17, 19
B. 3, 5, 7, 11, 13,17, 19
C. 2, 5, 7, 9, 11, 13, 17, 19
D. 2, 3, 5, 7,11, 13, 17, 19
Answer» E.


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