Find the Formula for the C-Unit Moving Average of a General

Multiple Choice

Find the formula for the c-unit moving average of a general linear function. $f ( x ) = n x + q$

A) $f ( x ) = n x + q + n c$
B) $\bar { f } ( x ) = n x - q + \frac { n c } { 2 }$
C) $\bar { f } ( x ) = n x + q + \frac { n c } { 2 }$
D) $\bar { f } ( x ) = n x + q - \frac { n c } { 2 }$
E) $\bar { f } ( x ) = n x - q - \frac { n c } { 2 }$