Explanation:
Identity development takes so long because of experiences. In life you gain new experience and learn new things ( that is if you're not close minded). You meet new people who influence you, whether bad or good. People can help shape your identity, as well as yourself.
B, taking another students lunch
Public health<span> is the science of protecting and improving the </span>health<span> of families and communities through promotion of healthy lifestyles, research for disease and injury prevention and detection and control of infectious diseases.</span>
