The graph below illustrates the growth curves for two types of bacteria, A and B, as the pH of their surrounding mediums change.

What is true of Bacteria A?

a
It grows best in a medium that is neutral.
b
It grows best in a medium that is slightly acidic.
c
It grows best in a medium that is very basic.
d
It grows best in a medium that is slightly basic.

b. It grows best in a medium that is slightly acidic.