Help. Betty divides
4x^4-2x+3
—————-
x+2

How does she proceed to the correct answer?

A. Betty places -2 in the box to the left in the synthetic division setup. She answers
4x^4-2x+3
—————- = 4x^3 + 8x^2 + 16x
x+2 + 30 + 63/x+2

B. Betty places 2 in the box to the left in the synthetic division setup. She answers
4x^4-2x+3
—————- = 4x^3 + 8x^2 + 16x
x+2 + 30 + 63/x+2

C. Betty places 2 in the box to the left in the synthetic division setup. She answers
4x^4-2x+3
—————- = 4x^3 - 8x^2 + 16x
x+2 - 34 + 71/x+2

D. Betty places -2 in the box to the left in the synthetic division setup. She answers
4x^4-2x+3
—————- = 4x^3 - 8x^2 +16x
x+2 - 34 + 71/x+2