The correct answer is option 4: more heat and more cold.

A person with a dark skin tone will generally experience more heat and more cold compared to a person with a white skin tone. This is because darker skin contains more melanin, a pigment that helps protect against the sun`s harmful ultraviolet (UV) rays. Melanin is responsible for absorbing and scattering UV rays, which reduces the amount of heat absorbed by the skin. This is why individuals with more melanin in their skin are less prone to sunburn and skin cancer.

However, melanin also affects how the skin responds to cold temperatures. It can restrict blood flow to the outer layers of the skin, reducing heat loss and making it more difficult for the body to regulate its temperature in cold environments. This means that individuals with darker skin may experience more cold than those with lighter skin.

In summary, a person with dark skin will experience more heat due to the higher amount of melanin that absorbs and scatters UV rays. They will also experience more cold because of the melanin`s impact on blood flow and heat loss in cold temperatures.