Ships except ______ must be equipped with oil discharge monitor and control systems. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
vessels of 10,000 gross tons and above prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
ships of less than 400 gross tons
D.
new oil tankers of 70,000 deadweight tons prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>