'Persistant' should end with '...ent'.
Answer:
A person with a darker complexion has more melanin in the skin. Melanin is the component responsible for dark pigmentation and the one that naturally protects us against UV rays. So, a person with a darker complexion will be more protected from UV rays than someone with a fair complexion.
Explanation:
People with darker complexion have higher levels of melanin in the epidermis. Melanin is a natural pigment that, besides giving darker complexions, when it is in high quantities, protects us against the UV rays damage, blocking some of these rays, but not as efficiently as sunscreen. As people with darker complexion have more melanin, they also have more protection against UV rays than people with fair complexion.
The answer to your question is most adequately described with letter D. The theme is the mysteries of God, as this was his "preoccupation." This is implemented in his epic tradition in Europe.
Just a simple thank you, if someone does something nice for you, keeping your elbows off the table at dinner, not eating loud and messy. these are most common ways of expressing good manners.
