What is the cause of the problem?

Refer to the exhibit.
On all routers in the network, EIGRP has been configured for load balancing across the
three links. However, traffic destined for Network B from R1 is only load balanced over paths
R1-R2-R5 and R1-R3-R5. What is the cause of the problem?

A.
EIGRP will not select more than two links for unequal cost path load balancing.

B.
Because the path has a different link type, EIGRP will not select path R1-R4-R5 for load
balancing.

C.
Because Router R4 is not a feasible successor, EIGRP will not select path R1-R4-R5 for
load balancing.

D.
EIGRP will not select path R1-R4-R5 for load balancing unless the value of the variance
parameter is increased.

Explanation:
Since R4 is not configured as a feasible successor, EIGRP will not select that path for load
balancing. IN EIGRP, you need to configure feasible successor to enable load balancing on
the path.