英语高手请帮忙回答solution用法

题目

英语高手请帮忙回答solution用法
初三英语测试题
I think you know the solution ____ the problem.
A.with B.on C.to D.of
C、D选项好像都可以,那个更恰当,

答案

solution
KK:[]
DJ:[]
n.
1.解答;解决(办法);解释[C][(+to/of/for)]
It may take a long time to find a solution to the problem.
也许要花很长时间才能找到解决这个问题的办法.
The solution of the problem requires a lot of time.
解决这个问题需要很多时间.
2.【数】解法,解式[C]
3.溶解,溶化;溶解状态[U]
Salt can be held in solution in water.
盐能溶于水.
4.溶液,溶剂[C][U]
She rinsed her mouth with a solution of salt in water.
她用盐的水溶液漱口.
5.瓦解;中断;消散[C][U]
6.【律】(债务的)清偿;(契约或义务的)履行[U]
选c