Question

select the subject of the sentence. you are invited to edna krabappel’s annual beach picnic.

Explanation:

In the sentence "You are invited to Edna Krabappel’s annual beach picnic", the subject is the part that performs the action (or in this case, is the entity being acted upon in the passive construction). "You" is the noun (pronoun) that the sentence is about, as it is the one being invited.

Answer:

You