Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): A system is called causal if its output y(t) at an arbitrary time $t = t_0$ depends on only the input $ x(t)$ for $t≤t_0$.
Reason (R) : In a causal system, it is not possible to obtain an output before an input is applied to the system. In the light of the above statements,
In the light of the above statements, choose the correct answer from the options given below.