Los amigos son simpáticos.
Los because you can see amigos has an O and not an A ; also simpáticos has an O and not an A which indicates it is masculine and Los is masculine, Las is not
A. (Habrás) I think is the one cuz it makes more sense once you read it I hopefully this helped u !
<span>seis quince would be the answer</span>
Si yo tengo el libro de español