Which part of ear processes the signal
Opt a - brain
Opt b - ear canal
Opt c ear drum
Opt d- all of these

Dear student,
The inner part of human ear contains cochlea and semi circular canals.
The vibration received from middle ear gets converted into signals by this part and then travel to brain.
So, cochlea and semicircular ear canals processed the sound vibration into nerve signals.
Regards,