The correct answer is:
a. cree
Elena no _cree_ la noticia
How to complete the statement?
The sentence "Elena no ___________ (creer) la noticia" is in the present tense, indicating an ongoing action or a general truth.
In Spanish, when expressing disbelief or doubt in the present, you use the present tense of the verb "creer," which is "cree" for the third person singular (he/she/it). Therefore, the correct sentence is "Elena no cree la noticia," meaning "Elena does not believe the news."
La oracion que queremos completar es "Elena no ___la noticia". Esta oración esta en el tiempo presente, asi que tenemos que usar la correcta conjugación de creer en este tiempo.
Creyo es preterito perfecto, Creí tambien es preterito perfecto (y primera persona). La unica opcion es cree, ques la opcion a.