Answer:
c. una mochila pequeña
Explanation:
the sentence in English reads, The boy( el chico is masculine hence refers to a boy, la chica would have meant the girl as it is feminine) has
(the answers are una- one, mochila-bag, pequena-small)
as the Spanish rule states:
1. if the noun is singular, all the verbs and adjectives must be singular( same applies to plural nouns)
2. if if the noun is masculine, all the adjectives must be masculine( same applies to feminine nouns)
eg la nina es bonita - las ninas son bonitas
el hombre es alto - los hombres son altos
choice
b) does not abide by the 1st rule, una means 1 and mochilas means bags
c) is ok
d)unos- ones; it does not bring the meaning in the sentence
e)unas - ones; same as (d)
so (c) is the best answer
El chico tiene una mochila pequeña - the boy has a small bag