Someone please help me

Does anyone know what the answer is

Choose the correct use of the spanish preposition para in the following sentence. para aprender un idioma bien, hay que practicar fuera del salón de clases. "in order to," followed by an infinitive "to," referring to a destination "by," referring to a deadline intended for a goal or destination

Ojalá que uds. a clase mañana. a. saben b. vienen c. vengan d. sepan