Find the Result That a Calculator Will Give for the Stated

Multiple Choice

Find the result that a calculator will give for the stated problem. Write your answer using the usual scientific notation.
- $(1.5 \mathrm{E} 15) *(5 \mathrm{E}-9)$

A) $-7.5 \times 10^{6}$
B) $7.5 \times 10^{6}$
C) $7.5 \times 10^{-6}$
D) $7.5 \times 10^{7}$