contestada

Manuel: ¿Qué te parece ir a este lugar ecoturístico? Carlos: ¡_________ maravilloso ir aquí! A. Será B. Serás C. Serán D. Seremos

Respuesta :

The answer would have to be será. The other answers would be incorrect because serás is plural, serán would be for taking about a specific person or thing and seremos would not be valid in this context.
The answer is A. Será