Find Sum of the Pair of Complex Numbers $12 - 11 \mathrm { i } , 5 + 3 \mathrm { i }$

Multiple Choice

Find sum of the pair of complex numbers.
- $12 - 11 \mathrm { i } , 5 + 3 \mathrm { i }$

A) $17 + 8 \mathrm { i }$
B) $8 - 17 \mathrm { i }$
C) $6 + 8 i$
D) $17 - 8 \mathrm { i }$