Which of the Following Conditions Are Common Causes of Restrictive

Which of the following conditions are common causes of restrictive lung disease?
1) Atelectasis and obesity
2) Interstitial lung disease and lung scarring
3) Chest wall dysfunction and neurologic disease
4) Asthma and emphysema

A) 1 and 4
B) 2 and 3
C) 2, 3, and 4
D) 1, 2, and 3