2.)if louise discovers that she can walk without tripping since she has been exercising regularly, this is an example of which exercise benefit?
a.)improved sleep habits
b.)improved self confidence
c.)improved balance
d.)improved self-esteem

C.) improved balance

Explanation:

In health, balance generally means a biological system that provides the opportunity to an individual to determine if his body in the specific environment and it is sustaining a desired position.

A person can have an improved balance if he engages in various activities like strength training, walking, and a given workout. These assist in making people to be stable and also preventing him from falling.

When a person engages in walking, the strength of his lower body will be built and this is very critical to maintaining good balance.  

it's 150 100% postive

i agree d is most definitely correct!