Modifiers are usually placed directly next to the nouns that are being modified.
But what if I need to modify a clause or a sentence holistically, such as in the following sentence:
when it comes to choosing between these two factors, which is so difficult and almost impossible, I would prefer classes with lectures to classes with open discussions for two main reasons.
In the sentence, I do not want to modify factors but the whole situation of choosing one over the other.
Is that kind of use of adjective clauses grammatically acceptable?