Is there a difference between "opt" and "choose"?
Solution 1:
As it is stated here:
Choose is the most general of these words and the only one that can be used without an object. When you select something, you choose it carefully, unless you actually say that it is selected randomly/at random. Pick is a more informal word and often a less careful action, used especially when the choice being made is not very important.
While
Opt - to choose to take or not to take a particular course of action:
After graduating she opted for a career in music. After a lot of thought, I opted against buying a motorbike.
As for your sentence I would suggest using something like input may be discarded/declined by the component(-s).