Please answer the following question by reasoning step-by-step.
Sarah thought that she had been home all evening. That meant that the only time to leave was when?\nOptions:\n- early morning\n- day time\n- night\n- afternoon\n- daytime

early morning
A person leaves home in early morning.

The only time to leave was early morning as Sarah had been home all evening.

.

So, the answer is early morning