A discrete time signal is as given belowX [n] = cos (\(\frac{πn}{2}\)) – sin (\(\frac{πn}{8}\)) + 3 cos (\(\frac{πn}{4} + \frac{π}{3})\)The period of the signal X [n] is _____________

• A. 16
• B. 4
• C. 2
• D. Non-periodic