C is the correct answer and your welcome
Explanation:
Personal values refers to a person's sense of morality; usually in terms of their behavioural characteristics, and this values acts as guiding principles in the person's lives.
For example, a person who has a high regard for life may avoid smoking tobacco, and this same individual may tend to dispose waste materials properly.
All t cells originate from haematopoietic stem cells in the bone marrow
False. the pineal glands are the ones that regulate sleep and wake cycles.
HIV can not be cured. It can only be treated with antibiotics.