Add or Subtract as Indicated $a+b i$
- $(3-5 \mathrm{i})+(4+9 \mathrm{i})$

Multiple Choice

Add or subtract as indicated. Write your answer in the form $a+b i$ .
- $(3-5 \mathrm{i}) +(4+9 \mathrm{i})$

A) $7+4 \mathrm{i}$
B) $-7-4 \mathrm{i}$
C) 7 - $4 \mathrm{i}$
D) $-1+14 \mathrm{i}$