What does a B-scope specifically help display in gunfire control?

A B-scope is primarily used in gunfire control systems to provide real-time information about the position of targets and the firing solutions necessary to engage them. It specifically helps display range and bearing, which are essential for accurate targeting.

Range indicates how far away the target is from the gun system, while bearing provides the directional angle to the target relative to the gun's position. This combination of range and bearing allows operators to determine the necessary adjustments for aiming and firing, thus facilitating effective engagement of targets.

The other options do not accurately represent the primary functions of a B-scope in gunfire control. While understanding altitude, wind speed, and temperature may be important in broader aspects of military operations or environmental considerations, the B-scope's focus is specifically on providing range and bearing data. This specialization makes it a critical tool for ensuring accuracy and effectiveness in target engagement during operations.