¿cuál es tu fruta favorita? mi fruta favorita son el mango. mi fruta favorita es el mango. mi favorita fruta ser el mango. mi favorita fruta está el mango.

Option 2 "Mi fruta favorita es el mango"

Explanation:

The exact translation to the question is: Which is your favorite fruit? it is asking for the fruit you like the most, the number one, so that means it has to be singular. "Fruta" means fruit, singular. Not Fruits, which would be "frutaS", plural. The verb is also in singular: "es" which means "is" third person of singular.

The first option has the noun of the question right: "fruta" in the singular as well the noun of the answer "mango", but the verb "son" it's in the third person in the plural, so it is wrong. You can't say "my favorite fruit are mango"The third option has everything right but the verb, wich is not conjugated, it's in the infinitive form. It would be like saying "my favorite fruti be the mango". The forth option has the order of the words wrong (Article, Noun, Adjetive, Verb, etc.) and the verb is wrong too; wich is singular, but we have to remember that the verb "to be" in Spanish translate into 2 diferent verbs: "ser" and "estar". "ser" is used to talk about permanent or lasting attributes, such as names or favorite things and "estar" is used to indicate temporary states and locations, so the correct verb is "ser" not "estar".The second option has every word in order, "Fruta" is singular, mango es also singular and the verb "es" its the corect verb "estar" in the correct form of singular of the third person (is) so the second option is the correct answer.

Un pájaro nubes un avión estrellas

Macy’s , walmart. etc.