以下均为同一本书，因为实在看不太懂解析...故来请教各位神人，谢谢！
书名：怪物讲师多益5回全真模拟试题
页数：p. 20
题目一：（第一回）第121题
The increasing popularity of e-books and e-readers
is affecting the publishing industry in various ways,
one of — is the rapid decline in the sales of printed books.
A. them
B. it
C. which
D. that
疑问：正解为C，想请问A为什么不行呢？
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书名：怪物讲师多益5回全真模拟试题
页数：p. 109
题目二：（第三回）第112题
—— interested in purchasing group tickets for
the Lakers games should call the Lakers Group
Services office or email a Group Events Specialist.
A. Anyone
B. Whoever
C. Who
D. Those who
疑问：正解为A,想问B/C为什么不行呢？
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书名：怪物讲师多益5回全真模拟试题
页数：p. 110
题目三：（第三回）第120题
A fine of $100 will be imposed upon any drivers —— the car
is illegally parked downtown during the holiday parade.
A. which
B. whose
C. of which
D. of whom
疑问：想问为什么是D？我看不懂解析...
“还原后可发现为of any drivers,也就是the car of any drivers”？
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书名：怪物讲师多益5回全真模拟试题
页数：p. 110
题目四：（第三回）第122题
The Eisenhower Foundation will soon —— its funding of
external scientific research into several new domains,
including genetics and endangered languages.
A. allocate
B. finance
C. expand
D. comprise
疑问：答案为C,想问这题的上下文可以选A吗？
可以解释成“基金会很快将"分配"其外部科学
研究资金到一些新的领域”吗？还是不能这样解释或使用？