问题：

[单选] Which condition must be satisfied before an EIGRP neighbor can be considered a feasiblesuccessor?（）

A . The neighbor's advertised distance must be less than or equal to the feasible distance of the current successor.
B . The neighbor's advertised distance must be less than the f easible distance of the current successor.
C . The neighbor's advertised distance must be greater than the feasible distance of the current successor.
D . The neighbor's advertised distance must be equal to the feasible distance of the current successor .
E . The neighbor's advertised distance must be greater than or equal to the feasible distance of the current successor.