What is the difference between a HI, HSI, and RMI?
a) HI displays heading, HSI displays heading and additional navigational information, RMI displays radio magnetic indicator
b) HI displays horizontal information, HSI displays heading information, RMI displays radar information
c) HI displays heading only, HSI displays heading and additional navigational information, RMI displays radar magnetic information
d) HI displays heading information, HSI displays horizontal situation information, RMI displays radio magnetic indicator