PLEASE HELP AND I WILL GIVE BRAINLIEST Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into one cup,
Suzanne can hear him through the other. What is the best reason to explain why this happens?
A
Sound waves produce an echo.
B
Sound waves can travel great distances.
Sound waves travel better through solids than gases.
D
Sound waves from whispering have a higher frequency