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



Which Bacteria A and B or both, grow best at a pH 8?

a
Bacteria A
b
Bacteria A and B
c
Neither Bacteria A and B can survive a pH of 8
d
Bacteria B

a

Bacteria A

According to the graph, Bacteria A is able to grow at a pH of 8, while Bacteria B does not grow well at this pH. Therefore, the correct answer is option b) Bacteria A and B.