The following dialog is for questions 1 to 3.

Kinar: What are you doing?

Arka: I am editing my sister's handicraft pictures.

Kinar: Will the handicrafts be sold online?

Arka: Yes, they will. My sister will upload them on her social media to promote them. ·

Kinar: Does your sister sell them through her online shop?

Arka: No, she doesn't. She doesn't have accounts.

Kinar: I think she must have accounts so that she can sell her handicrafts through online shops

Arka: You are absolutely right. I will tell her about it.

Arka says, "My sister will upload them on her social media to promote them"

The underlined word refers to ____.