It is the '<span>Two men argue about whose football team is better.</span>' Because you can see that two characters are arguing about what football team is better.
D is the answer because the pass tense of practice is practiced and that’s what was needed to be the answer .
I just got this question on a test and the answer is either B or C
Assuming the italicized clause is <em>Since its establishment, </em>the correct answer here is elliptical clause.
Elliptical means that a word which would normally be part of a sentence is excluded, usually for stylistic reasons. Here, the verb is missing, which is why it is elliptical. The question is oddly formulated too - given that there is no verb here, it cannot be a clause, but rather a phrase, but since there is no such option here, then the correct answer is elliptical clause.