In a 3-way peering connection A to B and A to C. Can A address the same instance IP/32 in both B and C via peering connection - I am not sure. Both B and C have matching /16 CIDRs.
Routing for Response Traffic - simply talks about A sending responses back to the correct calling instance(in B).
But does not talk about an instance in C calling A, neither A calling B nor C. What will happen when the same /32 from C calls A.