MCQ Practice Question Signals & SystemsSystem Properties The continuous-time system y(t)=x(t-1) is? ANoncausal BCausal with memory CMemoryless and causal DUnstable for every input Show AnswerHide AnswerReport an error Correct Answer: B. Causal with memory Explanation: It depends on a past input value, so it is causal and has memory.Reference: Standard signals and systems: system properties