Answer:
Focus on yourself, cut toxic people out your life, talk to your self positively, elf-care, and smile life's short when you're on your deathbed you are going to regret those days you were sad stop overthinking and just live life.
Explanation:
A) circulatory it helps the oxygen move around in your body.
A persons ability to transport oxygen to the body.
Meat such as bacon, and generally pork, can be a great source of B12 vitamin that helps you metabolize food, as well as Iron and Zync, which can help you in healing and recuperating.
The answer is D! Hope that helps!