What is the best description for the word symptom?

Name: What is the best description for the word symptom?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

A symptom is an indication of a problem.
A runny nose is a symptom of the common cold.
Symptoms can be extremely harmful and severe, but not necessarily.
Reddened, swollen, sore are examples of symptoms as they are all things that indicate a problem. However, this is not the definition of 'symptom.'
Identification of an injury or disease is a diagnosis.

What Is the Best Description for the Word Symptom