Respuesta :
In this case, the sentence that is grammatically correct is 'Mi mama es costarricense' (Option C).
What does 'Costarricense' mean?
The word adjective 'Costarricense' in Spanish language means that a person is originally from Costa Rica.
- Costarricense is an adjective that means Costa Rican (plural costarricenses).
In conclusion, in this case, the sentence that is grammatically correct is 'Mi mama es costarricense' (Option C).
Learn more about Spanish adjectives here:
https://brainly.com/question/2457914
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