选择题;There seems to be no solution ___the problem.A.for B.to C.of D.on

B.应该是固定搭配

[Date: 1300-1400; Language: Old French; Origin: Latin solutio, from solvere; SOLVE]
[C]
a way of solving a problem or dealing with a difficult situation
→solve
The best solution would be for them to separate.
Both sides are trying to find a peaceful solution .

solution to/for
There are no simple solutions to the problem of overpopulation.
the perfect solution to all of our problems
a political solution to the conflict in Northern Ireland
[C]
the correct answer to a problem in an exercise or competition
= answer
→solve solution to
The solution to last week's puzzle is on page 12.
[U and C]
a liquid in which a solid or gas has been mixed
a weak sugar solution
saline solution

B to,这是固定的用法，相似的还有the key to the door,the answer to the question,the solution to the problem等等。这里的to 相当于与中文里的“的”意思。