Detailed Explanation:
Rationale for Correct Answer:
In B-Series (Brocade) SAN switches, trunking requires that all ports in a trunk group belong to the same port group (same ASIC) and run at the same speed. This ensures frame ordering and load balancing across ISLs.
Distractors:
A: Incorrect - cable length differences must be minimal, but not stated in meters like this.
C: Incorrect - speeds must match across all trunked ports.
D: Trunking requires a license on some Brocade models; not always enabled by default.
Key Concept: Port trunking requires same port group and same speed.
Reference: HPE B-Series SAN Switch Trunking Best Practices.