Sudden onset of severe abdominal pains is termed as A. Acute abdomen
B. Peptic ulcer
C. Peritonitis
D. Appendicitis

Sudden onset of severe abdominal pains is termed as D. Appendicitis.

Explanation:

The symptoms of appendicitis are nausea, vomiting, fever, tachycardia (fast heartbeats), and foul breath

Increase in urinary frequency- inflamed appendix may come in contact with urinary bladder and cause irritation and increase in urinary frequency

Appendicitis starts with pain around the umbilicus and progresses to the right lower abdomen or pelvis in a few hours.

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proper noun

explanation:

a proper noun is the name of a particular place, person, or thing. england and america are a proper noun because it is a particular place.