Solve the Problem $a _ { n } = 14 + 4 n ; 42$

Solve the problem.
-A lecture hall has 11 rows with 14 seats in the first row, 18 seats in the second row, 22 seats in the third row, and so on. Write an equation of a sequence whose terms correspond to the seats in each row. Find the number of seats in the seventh row.

A) $a _ { n } = 14 + 4 n ; 42$ seats
B) $a _ { n } = 18 ( n - 1 ) ; 108$ seats
C) $a _ { n } = 14 + 4 ( n - 1 ) ; 38$ seats
D) $a _ { n } = 14 + 4 ( 11 - n ) ; 30$ seats