Read the passage.

“My older brother patronizes me when I ask him for help with my homework,” Meredith said. “He smirks at me and says things like ‘Gosh, I knew that when I was in second grade. Don’t you know that?’”

What does patronize mean in this passage?

1.to aid or support

2.to be a customer of

3.to trade or deal with

4.to adopt an air of superiority