Which equation below represents y= x2 - x - 30 after the first step of the factor by grouping process?
A. y = x2 + 5x + 6x - 30
B. y = x2 + 5x - 6x - 30
C. y = x2 - 5x - 6x + 30
D. y = x2 + 5x - 6x + 30