The reason that some speakers might choose 'correct' over 'right' has to to with semantics, meaning, or rather contextual meaning: what sounds "right" to me, for example, may not sound "right" to someone else. The word 'correct' on the other hand has a sense of authority to it; i.e., what the teacher or grammar deems as "right".
Having said that, given the "context" (e.g., a test situation), the assumption or pragmatics of the language is that 'right' means 'correct', and hence the validity of either or being a valid choice for the example sentences given in post #1.
So, I can use either without any difference in meaning. Right?
Both, but in my school days I never saw " right" used that way. I only saw or observed " correct words", " correct verbs", " correct adjectives" or " correct nouns" etc. Therefore I was confused.
Thank you all. You people have been very helpful