This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Eosinophilic Dermatoses, Subject name: Skin
Which of the following cause allergic contact dermatitis through air? 
Select and explain. 
A. House dust mite, B. Nickel, C. Parthenium, D. Detergents
C: Parthenium
Answer: C: Parthenium 
Explanation: ANSWER: (C) PartheniumREF: Roxburgh's 17th ed page 105-109, rooks- 7th ed p. 19.1-19.20, fitzpatrick s p. 1181-1203CONTACT DERMATITISType 4 hypersensitivityDiagnosis by patch test (read 2 days)Most common air borne contact dermatitis: Parthenium (congress grass)Most common contact dermatitis in Indian females: Detergent dermatitisMost common contact dermatitis due to metal: Nickel