Is It Possible to Send Waves to the Moon from Earth

Is it possible to send waves to the moon from Earth?

A) Yes, we could conceivably send a sufficiently loud sound wave.
B) No, because there is no air between the earth and moon.
C) Yes, we could send a water wave-- in fact, we plan to colonize the moon, and solve the Los Angeles smog problem, by sending the entire population of California there on surfboards.
D) Yes, we could send an electromagnetic wave.
E) No, because there is no medium of any kind between the earth and moon.