一道英语语法题.高手快进SanDiego'sZoo,WildAnimalPark,andSeaWorldareplaceswhereresidentsandvisitorsalikecanenjoyrareanimalsandplantsinshowsandexhibits,inpartbySanDiego'sclimate.AmadeitpossibleBmakingitpos

Question

一道英语语法题.高手快进
San Diego's Zoo,Wild Animal Park,and Sea World are places where residents and visitors alike can enjoy rare animals and plants in shows and exhibits,___in part by San Diego's climate.
A made it possible
B making it possible
C making possible
D made possible
答案是D 为什么其他不对?请帮我分析一下这句话的句式结构,真正的主语是什么?

Answer 1

made in part by San Diego's climate这部分是伴随状语,表示shows and exhibits是被San Diego's climate
做出的.主语是 San Diego's Zoo,Wild Animal Park,and Sea World are places
而 where residents and visitors alike can enjoy rare animals and plants in shows and exhibits,___in part by San Diego's climate整句是定语从句