What must be true for a connector to be well formed if a delegation connector delegates to more than one target port?
A . The interfaces of the target ports must have no features in common.
B . The interface of at least one of the target ports must be signature compatible with the interface that is the type of the source port.
C . The interface of each of the target ports must be signature compatible with the interface that is the type of the source port.
D . The union of the interfaces of the target ports must be signature compatible with the interface that is the type of the source port.
Answer: D