Add or Subtract as Indicated and Write the Result in Standard

Multiple Choice

Add or subtract as indicated and write the result in standard form.
- $( - 7 + 7 i ) - 8$

A) $- 15 + 7 \mathrm { i }$
B) $15 - 7 \mathrm { i }$
C) $1 + 7 \mathrm { i }$
D) $1 - 7 \mathrm { i }$