Simplify to the Form $a+b i$
- $\mathrm{i}^{630}+\mathrm{i}^{247}$ A) 1 - I
B)

Multiple Choice

Simplify to the form $a+b i$ .
- $\mathrm{i}^{630}+\mathrm{i}^{247}$

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