To add to this on why B is correct. I wanted to double check one more thing. When configuring a tap or tool port, you have to enable "switchport mode "tap/tool" when doing this after entering one of the other, there is no more avaialble commands you get the <cr> when entering switchport mode tool ?.. So A is definitely not correct.
B is correct, if it is assumed these ports have been enabled for tap and tool mode using switchport mode tap/tool command. This is a requirement. To double check this, I verified my span switch configuration and all tap and tool ports have switchport mode tap/tool entered.
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