Please answer the following question: Read the passage below and choose the right answer to the following question (choices are less. or more ): Bases have pH values above 7. The higher the pH value, the more strongly basic the substance. Christy is in lab measuring the pH values of some substances. The first substance she measures has a pH value of 9. The second substance has a pH value of 8. Compared to the first, the second substance can be said to be less. or more basic?
A:
less.