The output y(t) of a linear time invariant system is related to its input x(t) by the following equation y(t) = 0.5x(t - td + 1) + x(t - td) + 0.5 x(t - td + 7). The filter transfer function H(œâ) of such a system is given by

The output y(t) of a linear time invariant system is related to its in

1.	The output y(t) of a linear time invariant system is related to its input x(t) by the following equation y(t) = 0.5x(t - td + 1) + x(t - td) + 0.5 x(t - td + 7). The filter transfer function H(œâ) of such a system is given by
A.	(1 + cos œât)e-jœât d
B.	(1 + 0.5 cos œât)e-jœât d
C.	(1 + cos œât)ejœât d
D.	(1 - 0.5 cos œât)e-jœât d
Answer» B. (1 + 0.5 cos œât)e-jœât d