Topic: Article,

Best Answer Explained in Below-:

The correct answer to the question "Are you attending ... reception today?" is "C) the." This choice is appropriate because "the" is a definite article used to refer to a specific noun that is known to both the speaker and the listener. In this context, the speaker is likely referring to a particular reception that has been previously announced, planned, or is otherwise understood by both parties.

Using "the" indicates that the reception is not just any reception, but a specific one occurring today, making it clear that the listener should be aware of which event is being discussed.

On the other hand, "a" (option A) and "an" (option B) are indefinite articles used when introducing something for the first time or when it isn't specified. If the question had been about any reception at all, these would be appropriate; however, since a specific reception is indicated, they do not fit. Finally, option D, "no article," would also be incorrect because it fails to convey the necessary specificity about the reception being discussed. Thus, "the" is the most fitting choice in this case.