Table 5C Given the Following Table

Table 5C
Given the following table:
-What cause is suggested by the information in Table 5C?

A) A is a necessary but not a sufficient condition for the phenomenon.
B) C is a sufficient but not a necessary condition for the phenomenon.
C) F is a necessary but not a sufficient condition for the phenomenon.
D) D is a sufficient but not a necessary condition for the phenomenon.
E) B is a sufficient and necessary condition for the phenomenon.