Prachi, the office manager at a private practice, identified several quantitative relationships surrounding a patient's visit and wait time and modeled them with the following functions: Function | Input | Output - | - | - $P$| Time of day, $t$ | People in waiting room, $P(t)$ $W$ | People in waiting room, $n$ | Patient's waiting time, $W(n)$ $L$ | People in waiting room, $x$ | Average length of visit, $L(x)$ **The expression $L(P(t))$ represents which of the following?** [[☃ radio 1]]