下列信用证条款中，属于佣金条款的是（）

A、Port congestion surcharges, if any, at the time of shipment is for openers account
B、Signed invoices must show 5%o commission
C、5%o commission to be deducted from the invoice value
D、Beneficiary"s drafts are to be made out for 95% of invoice value, being 5%ocommission payable to credit opener