Exercises 65–69 refer to the following: Two collectors, John and Juneko, are each selecting a group of three posters from a group of seven movie posters: J, K, L, M, N, O, and P. No poster can be in both groups. The selections made by John and Juneko are subject to the following restrictions:
? If K is in John’s group, M must be in Juneko’s group.
? If N is in John’s group, P must be in Juneko’s group.
? J and P cannot be in the same group.
? M and O cannot be in the same group.
If K is in John’s group, which of the following is true?
a. J must be in John’s group.
b. O must be in John’s group.
c. L must be in Juneko’s group.
d. N cannot be in John’s group.
e. O cannot be in Juneko’s group.
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