Write the Word or Phrase That Best Completes Each Statement $\sqrt { - 172 }$

Multiple Choice

Write the word or phrase that best completes each statement or answers the question.
Provide an appropriate response.
- $\sqrt { - 172 }$

A) $- 2 \sqrt { 43 }$
B) $2 \sqrt { 43 } \mathrm { i }$
C) $- 2 \sqrt { 43 } \mathrm { i }$
D) $2 \sqrt { 43 }$