The correct answer is D.
Kenneth could very well have HIV/AIDS. HIV/AIDS attacks your immune system and destroys white blood cells, the cells that are used to fight infections. He can’t seem to get over a common cold and is always getting sick, these are signs that something is wrong with his immune system, he has also contracted a fungal infection in his chest as a result of his body not being able to fight off the cold virus and his white blood cell count is low. This would all point to HIV/AIDS.