Figure 63 Activity of Various Enzymes (A)at Various Temperatures and (B)at

Figure 6.3 Activity of various enzymes (a) at various temperatures and (b) at various pH.
-Which curves on the graphs in Figure 6.3 may represent the temperature and pH profiles of an enzyme taken from a bacterium that lives in a mildly alkaline hot spring at temperatures of 70°C or higher?

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