The accurate representation of each term’s distinguishing feature is:
- A conjecture is a statement that is proposed based on observations but has not yet been proven true.
- A theorem is a statement that has been proven to be true based on axioms and previously established theorems.
- A postulate (or axiom) is a statement that is assumed to be true without requiring proof.
- A definition explains the meaning of a term or concept.
Based on the options given, the correct choice would be:
A postulate is assumed to be true, and it does not have to be proven.
This is the distinguishing feature of a postulate, while the other statements do not correctly represent their respective terms.