EIGRP - Unicast routing challenge lab

Based on the scenario, configuration and results. Explain why R5 do not make any neighbor relationship with any of Broadcast network.

Verification Results
R1#show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
0   1.1.1.3                 Fa0/0             11 00:01:22  295  1770  0  3


R2#show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
0   1.1.1.3                 Fa0/0             12 00:01:53  307  1842  0  5


R3#show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
1   1.1.1.2                 Fa0/0             13 00:02:09  107   642  0  3
0   1.1.1.1                 Fa0/0             11 00:02:09  162   972  0  3


R5#show ip eigrp neighbors
IP-EIGRP neighbors for process 10

Explain why R5 do not have any neighbors