What is the equivalent lowpass representation obtained by performing a – McqOptions

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1.	What is the equivalent lowpass representation obtained by performing a frequency translation of X+(F) to Xl(F)= ?
A.	X<sub>+</sub>(F+F<sub>c</sub>)
B.	X<sub>+</sub>(F-F<sub>c</sub>)
C.	X<sub>+</sub>(F*F<sub>c</sub>)
D.	X<sub>+</sub>(F<sub>c</sub>-F)
Answer» B. X<sub>+</sub>(F-F<sub>c</sub>)

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