Answer:
The last one : Fernando might offer to help save a species
Explanation:
If you translate it to English it says "Fernando, I am fighting to protect rhinos from hunting." so obviously Fernando is trying to help save a certain species
The blank needs to be filled with "tomar" :)
1 expulsor: Al profesor le gusta expulsar a la gente de clase.
2 expulsor: El teniente estaba en un entrenamiento y el expulsor se le atascó
B. la infancia because it means “childhood” and that’s the time when people are most innocent