Answer:
<em>A. Awareness of ourselves & our environment</em>
Explanation:
To be conscious, is to be aware of yourself and your surroundings. If you are conscious, you don't necessarily need to be able to respond -- but you should at least be able to take in basic information surrounding you.
To have consciousness, you should at least have thoughts, perceptions, and possibly feelings.
Exercise increases your overall health and your sense of well-being, which puts more pep in your step every day. But exercise also has some direct stress-busting benefits. It pumps up your endorphins. Physical activity may help bump up the production of your brain's feel-good neurotransmitters, called endorphins.
Eating carrots can improve your eye vision.