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What are the effects of UVA rays on the skin?

  1. Superficial tanning

  2. Penetrates the skin deeply, causing aging and skin cancer

  3. Immediate sunburn

  4. Improves skin conditions

The correct answer is: Penetrates the skin deeply, causing aging and skin cancer

UVA rays are long wavelength ultraviolet rays that can penetrate deeply into the skin, causing damage and premature aging. This can lead to serious skin conditions such as wrinkles, age spots, and even skin cancer. While UVA rays may contribute to tanning, it is not solely responsible for superficial tanning and can have more significant and harmful effects on the skin. Additionally, UVA rays do not provide any benefits or improvements to skin conditions. Therefore, the correct answer in this case would be B.