The pH of milk is 6.0 while the pH of lemon juice is 2.0. Which of the following statements is true?
a) The milk is 4 times more acidic than the lemon juice.
b) The milk is 4 times more basic than the lemon juice.
c) The milk is 10 000 times more acidic than the lemon juice.
d) The milk is 10 000 times more basic than the lemon juice.