The answer to your question is page header, hope I have helped :)
Tomás no fue al cine porque tuvo que quedarse estudiando
1.Me gusta tocar el piano.
2.A mi me gustan los tacos
3.Les gusta tomar el sol.
A is correct, because b means play video games, and the question asks what your favorite thing to eat in the month. A means i ate beans with rice or something along those lines.