When importing routes from BGP to OSPF on PE2, which of the following types of LSAs may be passed to CE2?

As shown in the figure, PE1 and PE2 exchange private network routing information with their CEs through OSPF, and the same Domain ID is configured on PEI and PE2.

When importing routes from BGP to OSPF on PE2, which of the following types of LSAs may be passed to CE2? (Multiple Choice)
A . Type7 LSA
B . Type5 LSA
C . Type3 LSA
D . Type1 LSA

Answer: CD