Porque es femenina “La razón” ?

Okay i need someone to translate this to spanish for me . i would use google but it aint that accurate. my goals for this semester are very cliche. just like any other student i would like to be a straight a student and make the honor roll by the end of this semester. so far im doing really well following my goals. when i achieve my goals my family would be so proud of me. its honestly a good feeling when you do something big (:

Read carefully and choose the option with the correctly written sentence. a mi hermana y a mí nos gustan pasar el rato solas. a mi hermana y a mí les gusta pasar el rato solas. a mi hermana y a mí nos gusta pasar el rato solas. a mi hermana y a mí les gustan pasar el rato solas.

Este animal es el "rey de la selva." a. tigre b. hiena c. elefante d. león