Answer:
Karl listed the steps involved when information is sent from transmitters to receivers.
1 - A signal is produced.
2 - Radio waves are modulated and amplified.
3 - An antenna sends modulated waves through the air.
4 - An antenna captures the modulated waves.
5 - A signal is heard, seen, or used.
Which describes the missing step?
After Step 5, radio waves are amplified and demodulated.
Before Step 5, radio waves are amplified and demodulated.**
After Step 3, radio waves are amplified and demodulated.
Before Step 3, radio waves are amplified and demodulated.
Explanation:
(B)
