Difficult in breathing is termed as

Option C

Shortness or difficult in breathing is also known as Dyspnoea. It is a feeling of not being able to breathe well enough. Dyspnoea is a debilitating symptom that affects quality of life, exercise tolerance and mortality in various disease conditions/states. In patients with chronic obstructive pulmonary disease (COPD), it has been shown to be a better predictor of mortality than forced expiratory volume in 1 s.