A customer requested a quote for a 64Gb Fibre Channel system between two data centers...

The correct answer is B. The controlling requirement is the 95 km / 60 mile inter-data-center Fibre Channel distance. Standard Fibre Channel fabrics have native distance limits, and long-distance SAN designs require the correct licensing and buffer-credit behavior to maintain stable inter-switch link operation. HPE SAN design guidance states that B-series switches provide extended fabric support up to 10 km by default, but for distances greater than 10 km an Extended Fabrics license is required. Therefore, the configuration must include or modify the Fibre Channel software licensing to support the required long-distance fabric behavior. Option A is not the architectural issue; optics can be changed, but the long-distance fabric still needs the correct licensing and configuration. Option C is misleading because port form factor compatibility alone does not satisfy 95 km operation. Option D is too specific to port numbering and does not solve the distance requirement. The quote must be validated for both physical optics and the SAN feature license that enables extended-distance behavior. Reference/topics: HPE B-series Fibre Channel switching, Extended Fabric, inter-data-center SAN design, proposal validation.