What is the relationship between the impulse response h[n] of a system and its frequency response H($$e^ {jω}$$​) ?

Correct option is A

​$$\text{For a discrete-time LTI system:} \\[8pt]\bullet \ \text{The impulse response is } h[n] \\[4pt]\bullet \ \text{The frequency response is obtained by taking the Discrete-Time Fourier Transform (DTFT) of } h[n] \\[10pt]H(e^{j\omega}) = \sum_{n=-\infty}^{\infty} h[n] e^{-j\omega n} \\[10pt]\text{Thus, the frequency response describes how each frequency component of the input is affected by the system.}$$​​