Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours. You should __________.

A
expect to see cirrus clouds followed by altostratus and nimbostratus clouds
B
alter course to remain in the navigable semicircle
C
prepare for gusty winds, thunderstorms, and a sudden wind shift
D
expect clear weather, with steady winds and pressure, until the front passes
E