Answer:
The correct answer is A
Explanation:
The contrast resolution allows greater efficiency, when defining whether an image is hyperecogenic, isoecogenic or hypoecogenic, which would allow to have greater diagnostic value.
Well generally it will be a positive impact (Of course this generally depends on what the "Physical activity" is, it is generally good, reason being while exercising causes the brain to release endorphin's, as well as helping relax muscles and relieve physical tension, which can greatly help with stress.
