The answer is B
This is because to work it out I just used the options by multiplying each one together, for example, for B, I did 2x+3 * x-1 and I got 2x2+x-3 which means it was correct
we can use formula

we can compare
we get
a=x
b=2
now, we can plug that in formula
and we get

now, we can simplify it
...........Answer
To solve for E you'll add 867 to 108.
E - 867 = 108
E = 108 + 867
E = 975
Hope this helps :)