The nurse is instructing the mother of a child with asthma about noting food triggers for asthma attacks. Which of the following foods would most likely be responsible for causing an allergic...

The nurse is instructing the mother of a child with asthma about noting food triggers for asthma attacks. Which of the following foods would most likely be responsible for causing an allergic reaction?

1. Whitefish.

2. Tossed salad.

3. Hamburger.

4. Fudge brownies.