What does it mean if someone is described as "contentious"?

When someone is described as "contentious," it indicates that they are prone to causing or engaging in disputes and arguments. This term is often used to characterize individuals who tend to be combative or are eager to argue and challenge others' opinions. The essence of being contentious lies in the inclination to provoke disagreement or strife, making it synonymous with being quarrelsome and argumentative.

In contrast, being friendly and agreeable suggests a disposition that fosters cooperation and harmony, while calm and relaxed denote a state of tranquility. Similarly, reserved and quiet implies a tendency to remain silent or not engage in discussions actively. None of these alternative descriptions capture the inherently argumentative nature defined by "contentious." Thus, the choice linking this term to being quarrelsome and argumentative is accurate and reflects the correct understanding of the word's meaning.