Which of the following types of amplifiers will NOT have a lower cut-off frequency?

Correct option is C

Direct-coupled amplifiers do not have a lower cut-off frequency because they do not use coupling components like capacitors or transformers. These amplifiers directly couple the output of one stage to the input of the next stage, allowing them to amplify DC signals as well as low-frequency AC signals.
Application :
Low frequency amplification (< 10Hz).
Low current amplification.