You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Paragraph: Bases have pH values above 7. The higher the pH value, the more strongly basic the substance.
 Question: If Mona is filling her pool with chemicals to change the pH level of the water and she decreases the pH, what happens to the baseness of the water? 
 Choices: A)increase 
B)decrease
decrease