What is a fact?

A fact is defined as a statement that can be proven true or false through evidence. This means that facts are objective pieces of information that do not rely on personal feelings, beliefs, or interpretations. For example, the statement "Water boils at 100 degrees Celsius at sea level" is a fact because it can be tested and verified through scientific methods.

In contrast, the other options represent subjective or unprovable statements. Personal opinions are inherently subjective and can vary from person to person, as they are based on individual perspectives. Hypothetical situations involve assumptions or scenarios that may not reflect reality and cannot be confirmed as true or false. An assumption without proof lacks evidence to support it, making it unreliable. Therefore, the defining characteristic of a fact is its ability to be substantiated with concrete evidence, which is why the correct answer is the one that pertains to verifiable statements.