
Passage: The members of the printing group and the bookbinding group are mainly from the following seven employees - F, G, H, J, K, L and M. The members of each group must meet the following conditions: (1) Each group has at least 3 employees . (2) F and K cannot be in the same group. (3) If K is in a certain group, J must also be in this group. (4) M is a member of at least one of these two groups. (5) Both groups have at least one same employee.
Question: Up to several employees can be members of both the printing group and the bookbinding group?
A. A.4
B. B.5
C. C.6
D. D.7
Answer: