Which routing protocol by default uses bandwidth and delay as metrics?

Which routing protocol by default uses bandwidth and delay as metrics?

A.
rip

B.
BGP

C.
OSPF

D.
EIGRP

Explanation:
This question tests the metrics of various routing protocols.
RIP uses hop-count as metrics; BGP uses complicated path attributes as metrics; OSPF uses bandwidth as metrics; and EIGRP uses bandwidth and delay as metrics by default.