Answer the following question given this paragraph: 

Sometimes people who are feeling anxious breathe too fast and become lightheaded. This is called hyperventilation. Hyperventilation can upset the pH balance of the blood, resulting in blood that is too basic. Explain why.


Q: What also happens when people feel anxious and breathe too fast?

 Choices:

- they become pettite

- they become hostile

- they become elated

- they become lightheaded

A:
they become lightheaded
