Use the Following Information to Answer the Question Below

Multiple Choice

Use the following information to answer the question below. Activity of various enzymes at various temperatures (a) and at various pH (b)
Which curves on the graphs most likely represent the temperature and pH profiles of an enzyme taken from a bacterium that lives in a mildly alkaline (basic) hot springs at temperatures of 70°C or higher?

A) curves 1 and 5
B) curves 2 and 5
C) curves 3 and 4
D) curves 3 and 5