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
A 28-year-old woman having limited cutaneous scleroderma for the last 10 years complains of shortness of breath for last one month. Pulmonary function tests (PFT) are as follow -What is the most likely diagnosis in this case? 
Select and explain. 
A. Interstitial lung disease, B. Pulmonary artery hypertension, C. Congestive heart failure, D. Bronchiectasis
B: Pulmonary artery hypertension
Answer: B: Pulmonary artery hypertension 
Explanation: None