In Relationship Testing,a "Direct Exclusion" Is Established When a Genetic

In relationship testing,a "direct exclusion" is established when a genetic marker is:

A) present in the child but absent in both the mother and alleged father.
B) present in the child, absent in the mother, and present in the alleged father.
C) absent in the child, present in the mother, and the alleged father.
D) absent in the child, present in the mother, and absent in the alleged father.