I'm not able to get this answer can anyone tell me this?

I’m not able to get this answer can anyone tell me this?

A 49-year-old male postman had undergone several operations to excise recurrent infections in both axillary lesions and the perianal region. Which of the following is true about this condition?

A. They are non-inflammatory conditions

B. They always require surgical intervention

C. They frequently involve the scalp

D. They are usually caused by staphylococci and streptococci

Ans D