Your company has a Skype for Business Server 2015 infrastructure that contains two topology sites named Seattle and Toro

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Your company has a Skype for Business Server 2015 infrastructure that contains two topology sites named Seattle and Toronto.
You plan to enable Enterprise Voice in both sites.
Each site has a public switched telephone network (PSTN) gateway. The company's telecommunications provider assigns the following number ranges to each site:
✑ Seattle: 425-555 (4000-4299)
✑ Toronto: 416-555 (4100-4199)
You need to configure the incoming normalization rules to convert the four-digit number to the E.164 format for each site.
What should you create?

A. a trunk configuration for each site and normalization rules for each site
B. normalization rules in the global trunk configuration
C. normalization rules in the global dial plan
D. a dial plan for each site and normalization rules for each site