To center a compass bowl in its binnacle, you should have the ship on an even keel, heading north or south, and adjust the screws until __________.

A
the compass heading is in line with the lubber's line
B
there is no lost motion in the gimbal rings
C
no change of heading by compass is observed if you raise and lower the heeling magnet
D
the gimbal rings do not strike the compass frame when they are tilted
E