Answer:
Certification.
Explanation:
Certification is the formal attestation or confirmation of certain characteristics of an object, person, or organization. This confirmation is often, but not always, provided by some form of external review, education, assessment, or audit. Accreditation is a specific organization's process of certification.
Answer:
D
Explanation:
A and b are basically the same thing and when overtraining you might feel sick
Most veins carry deoxygenated blood from the body back to the heart.
