Is creating a Read Replica of another Read Replica supported?
A.
 Only in VPC
B.
 Yes
C.
 Only in certain regions
D.
 No
Is creating a Read Replica of another Read Replica supported?
Is creating a Read Replica of another Read Replica supported?
A.
 Only in VPC
B.
 Yes
C.
 Only in certain regions
D.
 No
B, Yes
http://www.aiotestking.com/amazon/is-creating-a-read-replica-of-another-read-replica-supported/
B
Only with MySQL based RDS