When They Go Grocery Shopping, Sonia's Mother Is Often Busy

When they go grocery shopping, Sonia's mother is often busy and doesn't pay very much attention to her. When Sonia throws a tantrum in the store, her mother pays attention and scolds her. Though she doesn't like being scolded, Sonia prefers getting some attention to having no attention at all. Sonia learns that when she wants her mother's attention, she should scream or cry. What is the reinforcer in this situation?

A) The mother's attention
B) The screaming
C) Sonia
D) The mother's busyness