What does Riska buy?

Choose the correct answer by crossing a, b, c, or d!
 

Danang: Hi, Salma.

Salma: Hi. I didn't think that I meet you here.

Danang: Neither did I. My mother told me to accompany my sister to Murah mini market.

Salma: But, I don't see anyone with you now.

Danang: Oh, wait. Riska, come here please.

Riska: What's going on?

Danang: I want to introduce my classmate.

Salma: I'm Salma. Nice to see you.

Riska: I'm Riska. Nice to see you too.

Salma: What do you buy here?

Riska: Flour and frying oil. Our mother asked me to buy them.

Salma: Have you got them all?

Riska: Yes. Here they are. Let's go home, brother.

Danang: OK. We must go. See you, Salma.

Riska: Bye, Salma.

Salma: Bye.

What does Riska buy?