How is the sum expressed in sigma notation? 11 17 23 29 35 41
A. ∑(n=1 to 6) n
B. ∑(n=1 to 6) (6n - 5)
C. ∑(n=1 to 6) (6n + 5)
D. ∑(n=1 to 6) (5n + 6)