求英语高手，帮忙分析一道语法题。请尽量详细点儿，谢谢！

Question

Jone's father was among the first to make his fortune in ______ is now known as the most fantastic tourist attraction----Hawaii.
A. where B. which C. what D. that
正确答案是： C what
不太明白为什么不能选 A ? 难道这道题不是表示地点吗？请帮忙语法分析的稍微详细点儿。急！

Answer 1

正确答案是： C what是连接代词引导名词性从句 作介词in 的宾语 是宾语从句 what在从句中作主语

不能选 A. 因为where是连接副词 不能在名词性从句中 作主语

Answer 2

what指代的是the Hawaii where, 所以全句是Jone's father was among the first to make his fortune in _the Hawaii where_____ is now known as the most fantastic tourist attraction----Hawaii.所以光用where是不全的。遇到这种句子只要把全句了解清楚了，请很清楚的知道该填什么代词。本回答被提问者采纳

Answer 3

吧in去掉就是选择where
eg： 一般用 in the place ，the place为what ，加上介词in 代表where

Answer 4

where本身有in which 的意思选where 会和题中的in 重复

Answer 5

what is know as 。。。在这里what作主语。。。where不能做成分，引导主宾，只能作状语