Multiple Reflections of Sound

Q.

State True or False : Sound Recorder facility is available in Windows Media Player folder.

Q. why echoes cant be heard in a small room?

1. Because of multiple reflectcions in small rooms.
2. Because time gap between direct sound and reflected sound is too low to be perceptible by human ear.
3. Because small rooms absorb more sound.
4. Because small rooms reflect less amount of energy.