Mariners should be careful about taking RDF bearings on commercial stations broadcasting entertainment programs. What condition would probably NOT affect such a bearing?

A
The actual broadcast antenna may be remote from the broadcast station.
B
The shorter wave length of the broadcast band tends to re-radiate from the vessel's structure.
C
Many of these stations are inland causing land effect when the signal crosses the coastline.
D
The operating frequency may differ from the calibrated frequency of the RDF.
E