选择下列从句类型。 On the day when a baby is one month old, the families of the baby invite their relatives and friends to celebrate the occasion together. 译文：孩子满月那天，家人邀请亲朋好友来一起庆祝。A. 条件状语从句B. 目的状语从句C. 时间状语从句D. 地点状语从句