Can there be a context, concession, premise, and conclusion, all in one?

conclusion: But only a small minority of contemporary north americans................... have had any significant exposure to these works.

these works=the operas of Bizet and Verdi

Wouldnt that be the conclusion?

I used that conclusion and came up with the answer choice C.

Isn't the negation symbol:

¬

Please tell me if this is wrong or right?

I find it so hard to use conditional logic for these types of questions.

Can someone explain Q2 to me?

All trees are perennial plants with elongated stems.

I am not sure how it could be

tree → pre and estem

/pre or /estem → /tree

and not just

trees-pre

/pre-/trees

Would these two be the same thing?