Perform the Indicated Operation $$( 6 + 3 i ) - ( - 4 + i )$$

Multiple Choice

Perform the indicated operation. Write the result in the form a + bi.
- $$( 6 + 3 i ) - ( - 4 + i )$$

A) $- 10 - 2 \mathrm { i }$
B) $10 + 2 \mathrm { i }$
C) $10 - 2 \mathrm { i }$
D) $2 + 4 i$