Los muchachos no traen el helado, usted..

a.

tráigalos

b.

tráigala

c.

tráigalo

This is given in the imperative mood. This mood is used when telling someone to do something in a direct manner. Put another way, sentences in the imperative mood are commands. Tráigalo is the correct conjugation of the verb traer in formal form and for singular nouns. Put simply, you are telling someone to bring ice cream and usted makes the sentence to be formal because usted is the subject pronoun for the second person singular (formal you)

where do i click to hear the audio

hey, i'm sorry to disappoint you, but we can not answer your question today. we do not have your audio clip, therefore we can not listen to the audio about the schools in nicaragua. if you are able to put what the audio recording says here, i'd gladly be able to you.

have a nice day and happy halloween!