A. enough data are yet to be collected form various ethnic groups to confirm the unlikelihood of two DNA samples coming from two individual members
B. enough data of DNA samples should be collected to confirm that only DNA samples form the same person can match
C. enough data are yet to be collected from various ethnic groups to determine the likelihood of two different DNA samples coming form the same person
D. additional samples from various ethnic groups should be collected to determine that two DNA samples are unlikely to come from the same person