4 指出下列信用证条款中属于软条款信用证性质的是( )
A.
Commercial Invoice issued and signed by the applicant.
B.
Beneficiary’s Certificate stating that the sample has been sent to and approved by the applicant.
C.
Inspection Certificate issued by the applicant.
D.
The payment to be made after custom clearance.
E.
Credit Amendment stating the name of the vessel sent by the issuing bank.