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Almost Scientific Notation: How do You Multiply by Powers of Ten?

GMAT-4TBFT1

If $1500\times{10}^{k}$ equals a value less than $2$ and $k$ is an integer, what is the greatest possible value of $k$?

A

$2$

B

$3$

C

$-2$

D

$-3$

E

$-4$