It's asking what size does Carlos need. Small medium or large, in the text look for where it says Chico, mediano, or grande.
Any member of a small class of words found in many languages that are used as replacements or substitutes for nouns and noun phrases, and that have very general reference, as I, you, he, this, who, what. Pronouns are sometimes formally distinguished from nouns, as in English by the existence of special objective forms, as him for he or me for I, and by nonoccurrence with an article or adjective.
Bro I know it's long
Answer:
La casa mas colorida...
Las calles son de piedra.
Las casas son pequeñas.
El viejo san juan es bonito.
Answer:
1. María comprender la lección
2. Arsenio y Ricardo beben jugo de naranja
3. Yo corro en el parque
4. El profesor corre en la tarde
5. Los profesores corren en la tarde
