Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers thequestion.
Express in terms of i.
- $\sqrt{-147}$

A) $7 \sqrt{3} \mathrm{i}$
B) $-7 \sqrt{3} i$
C) $7 \sqrt{3}$
D) $-7 \sqrt{3}$