Answer:
the first one asks what your opinion on arroz con leche is and the second one asks if you think its good or horrible, does this help?
Being fluent in Spanish, I can tell you the answer is a. The option b is plural... You'd only choose it if they were talking about more than one puppy. But SINCE you're talking about a singular baby, the answer is a.
Cuales ensayos ? no le entiendo mucho a tu pregunta, perdón
If you're asking for the Spanish pronouns, here they are!
-yo (I)
-tú (you, informal)
-él (he)
-ella (she)
-nosotros (as) : we
-vosotros (as) : you, plural, **ONLY USED IN SPAIN**
-usted (you, formal)
-ustedes (you, formal, plural)
-ellos (they, masc.)
-ellas (they, fem)
If I missed anything, sorry~!