Read the dialogue below and answer the questions!

Gita: Hi, Rasya How are you doing?

Rasya: Bad.

Gita: What's wrong?

Rasya: My father is sick. He has to stay in the hospital for a few days to get medical care.

Gita: What happen to him?

Rasya: He has cancer.

Gita: I'm sorry to hear that. But you still go to school?

Rasya: Yeah, my mom told me that I have to go to school. She is in the hospital accompany my dad.

Gita: I hope your dad will get better soon.

Rasya: Yeah, I hope so.

What kind of disease is suffered by Rasya's father?