问题：

[单选] According to the Code of Federal Regulations，on vessels other than river ferryboats and river vessels，how are periodic lifeboat weight tests required to be conducted?（）

A . The lifeboat is lowered to near the water，loaded with the allowed capacity，lowered into the water until afloat，then released from the falls
B . The lifeboat is loaded with the allowed capacity，lowered into the water until afloat，then released from the falls
C . The lifeboat is lowered into the water until afloat，loaded with the allowed capacity，then released from the falls
D . The lifeboat is lowered to near the water，loaded with the allowed capacity，then released from the fall