Regarding sweat glands, which is true?

• A. the main nerve supply is via cholinergic sympathetic fibres
• B. the main nerve supply is via adrenergic sympathetic nerves
• C. the sweat glands derive from the mesoderm
• D. the normal tubular sweat glands undergo cyclical changes with the menstrual cycle
• E. the highest number of sweat glands are found on the soles and palms