Dark-skinned people from Africa compared to white-skinned people from Britain

Dark-skinned people from Africa, due to higher levels of melanin in their skin, generally [A] feel more heat compared to white-skinned people from Britain. Melanin, responsible for skin pigmentation, absorbs sunlight and dissipates heat more slowly, resulting in a higher retention of heat within the body. In hot environments, this can lead to increased discomfort and a heightened perception of heat. In contrast, white-skinned individuals possess less melanin, allowing for more efficient dissipation of heat, thus experiencing less discomfort from heat exposure. While both groups may experience variations in their perception of heat based on factors such as humidity and individual tolerance levels, the physiological difference in melanin levels predisposes darker-skinned individuals to feel more heat compared to their lighter-skinned counterparts. Therefore, option [A] is the most appropriate choice.