Use reasoning to lead to the answer of the following question:
The king needed to feel safe, where did he go?\nOptions:\n- castle\n- throne room\n- deck of cards\n- fort\n- court

castle
Castle is a large building, typically of the medieval period, fortified against attack with thick walls, battlements, towers, and in many cases a moat.

The king needed to feel safe, he went to castle.

.

The answer is castle