In "Saving Tobe," why does Amalia slap Serafin?

Amalia is trying to revive Serafin because his lungs are filled with river water.

Amalia is upset because she and their family would be alone if Serafin had drowned.

Amalia is punishing Serafin for refusing to allow others to help him with the rescue.

Amalia is angry that Serafin went into the river even though he is a weak swimmer.