Tongue`s surface in Prolonged antibiotic use

Which of the following conditions is the skin finding shown in the picture associated with?

• A) Prolonged antibiotic use
• B) Sjögren's syndrome
• C) Addison's disease
• D) Chronic gastroesophageal reflux
• E) Malignant melanoma

The answer is A. 

(Black tongue)  actually ...Black hairy tongue results from hyperplasia of the filiform papillae with deposition of keratin on the surface. The condition causes the tongue to have a dark, velvety, hairlike appearance.
Associated conditions include smoking, consumption of coffee, prolonged use of antibiotics, and possibly acquired immunodeficiency syndrome. Treatment involves using a toothbrush to scrape off the excess keratin that forms on the tongue's suface.