Im guessing A as that could be indicative of deterioration of the client’s health
Langerhans cells are dendritic cells (antigen-presenting immune cells) of the skin, and contain organelles called Birbeck granules. They are present in all layers of the epidermis and are most prominent in the stratum spinosum.
The reason we have the Corona Virus is because some huh decided to eat a bat for some reason.