What subject pronoun would you use when talking about Marcos? 1) ellas 2) ellos 3) él 4) ustedes
ellas(girls) is they, ellos(guys) is they, el is he, ustedes is you... so it would be el (3)
It would be option 3: él because he is a male. The accent mark is required over the e. It means something else if there is no accent mark.