Eduardo ahorra dinero mensualmente para poder viajar al final del año.
Explanation:
Eduardo ahorra dinero mensualmente para poder viajar al final del año. This means Eduardo saves money monthly to save money to travel by the end of the year. Mensualmente is and adverb that means every month. It's the only correct answer. "Perfectamente" means perfectly, which makes no sense in this context. "Cariñosamente" means affectively, and "tranquilamente" means quietly.
Eduardo ahorra dinero mensualmente para poder viajar al final del año. = Eduardo saves money monthly to be able to travel at the end of the year. hope this helps
