Which two statements about route redistribution when implementing OSPF are true?（）

A. Routes learned using any IP routing protocol can only be redistributed into non IP routing protocols.
B. OSPF can import routes learned using EIGRP, RIP, and IS - I
C. OSPF routes cannot be exported into EIGRP, RIP, an d IS - I
D. At the interdomain level, OSPF cannot import routes learned using BG
E. OSPF routes can be exported into BG