——where did you find the group of children? ——It was in the

——where did you find the group of children? ——It was in the woods＿＿they played hide-and-seek
——where did you find the group of children?
——It was in the woods＿＿they played hide-and-seek
A.that B.where C.which D.when
为什么选B不选A啊,这句不是强调句么,而且在the woods 的前面也有介词in了啊 为什么还要用where 我需要详细说明