Which one of the following statements about cargo insurance document is NOT correct? ( )

A、The credit should state type of insurance required and additional risks to be covered.;
B、If the credit uses imprecise terms such as “usual risks” or “customary risks”, banks will not accept such insurance document because the insurance coverage is not clearly defined in the credit.;
C、If the credit requires insurance against “all risks”, banks will accept insurance document containing any “all risks” notation or clause, without regard to any risks stated to be excluded.;
D、An insurance document may contain reference to any exclusion clause.