Fact 1: Balance is the ability to sense and maintain body position.

Fact 2: Inner ear problems can affect balance.

Given the two facts above, answer the question "What can affect ability to sense and maintain body position?" with the following options: 
- ear canal
 - colors of the spectrum
 - movement of tectonic plates
 - inner ear problems
 - energy of moving objects
 - ear wax buildup
 - pierced ears
 - Electrical energy


 

    inner ear problems     