The initial margin is the:（）

A. minimum amount of funds that must be supplied when purchasing a security on margin.

B. amount of liquidity that must be maintained in a margin account.

C. amount of cash that an investor must maintain in his/her margin account.

Instructions for on-board maintenance of each life-saving appliance shall not include（）.

A.a checklist for use when carrying out the inspections

B.list of crew members

C.maintenance and repair instructions

D.schedule of periodic maintenance