This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
28 years old woman having limited cutaneous scleroderma for the last 10 years complains of shoness of breath for last one month. What is most likely diagnosis in this case? 
Select and explain. 
A. Interstitial lung disease, B. Pulmonary aery hypeension, C. Congestive hea failure, D. Bronchiectasis
A: Interstitial lung disease
Answer: A: Interstitial lung disease 
Explanation: The most likely diagnosis for the above mentioned clinical scenario is interstitial lung disease. Ref: Harrisons Principles of Internal Medicine, 16th Edition, Pages 1554-57; R Alagappan, Manual of Practical Medicine, 3rd Edition, Page 243-44.