Multiply Write the Result in the Form a + Bi $( 8 + 7 i ) ( 7 - 6 i )$

Multiple Choice

Multiply. Write the result in the form a + bi.
-( $( 8 + 7 i ) ( 7 - 6 i )$

A) $$98 + 1 i$$
B) $14 + 97 i$
C) $98 - 1 \mathrm { i }$
D) $- 42 i ^ { 2 } + 1 i + 56$