This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of skin, Subject name: Dental
Fordyce&;s spot involves- 
Select and explain. 
A. Sebaceous glands, B. Pilosebaceous glands, C. Hair, D. Nails
A: Sebaceous glands
Answer: A: Sebaceous glands 
Explanation: Fordyces spot is very common and occur in actinic sebaceous glands. They appear as symmetric , multiple, yellow, flat topped papules. Common sites are lips, buccal mucosa, vulva and penile shaft. fordyce spots are ectopic sebaceous glands. they are multiple symmetric------ penile shaft. other ectopic sebaceous glands are Montgomery tubercles- breast meibomian glands- eyes zeis glands- eyes tysons glands- Male external genitalia Ref : Harrison20th edition pg 1207