Add or Subtract and Simplify $(7+6 \mathrm{i})-(-4+\mathrm{i})$ A) $11-5 \mathrm{i}$ B) $-11-5 \mathrm{i}$

Multiple Choice

Add or subtract and simplify.
- $(7+6 \mathrm{i}) -(-4+\mathrm{i})$

A) $11-5 \mathrm{i}$
B) $-11-5 \mathrm{i}$
C) $3+7 \mathrm{i}$
D) $11+5 \mathrm{i}$