Two isolated mountain towns want to design a way to establish radio contact between them. Currently radio signals between
the towns are too weak. They decide to use radio signal repeaters that receive and retransmit radio waves.
Town 1
A
B
Town 2
At which point(s) should the towns place a signal repeater to establish radio contact between the two towns?
A. Radio waves have a limited range, so a repeater at location B would be best.
OB. Radio waves have a limited range, so a repeater at location C would be best.
OC. Radio waves transmit farther when they are sent from a higher location, so a repeater at location A would be best.
OD. Radio waves can be weakened when passing through mountains, so a repeater at location A and at location C would be best.