Which of the following distinguishes a fact from an opinion?

A fact can be supported with examples
A fact can be supported with evidence
A fact can be proven true
A fact can be changed over time

The following options distinguish a fact from an opinion:

- A fact can be supported with examples: This is true because facts can be demonstrated through specific examples or instances.

- A fact can be supported with evidence: Again, facts can be backed up by empirical evidence, data, or credible sources.

- A fact can be proven true: Unlike opinions, which are subjective, facts can be confirmed or verified.

Therefore, the correct options are: "A fact can be supported with examples," "A fact can be supported with evidence," and "A fact can be proven true."