Select all the equations that represent the following situation if ? represents the unknown quantity. Sixteen socks are put into pairs. How many pairs are there? Multiple select question. A) 2 ÷ 16 = ? B) 16 ÷ 2 = ? C) 2 · ? = 16 D) ? · 16 = 2 E) 16 · ? = 2 F) ? · 2 = 16