In the set of complex numbers, the result of the operation $$( 3 - i ) ( 2 - i ) ( 1 + i ) ( 2 + i ) ( 3 + i )$$ is $\mathbf { a } + \mathbf { b i }$. What is the sum $a + b$? A) 80 B) 84 C) 90 D) 96 E) 100
In the set of complex numbers, the result of the operation
$$( 3 - i ) ( 2 - i ) ( 1 + i ) ( 2 + i ) ( 3 + i )$$
is $\mathbf { a } + \mathbf { b i }$. What is the sum $a + b$?\\
A) 80\\
B) 84\\
C) 90\\
D) 96\\
E) 100