6987. His conjecture was better than mine.

✅ The correct answer is option A.
Guess : estimate or conclude (something) without sufficient information to be sure of being correct.

Knowledge : facts, information, and skills acquired through experience or education; the theoretical or practical understanding of a subject.

Intuition : the ability to understand something instinctively, without the need for conscious reasoning.

Experience : practical contact with and observation of facts or events.

Conjecture : an opinion or conclusion formed on the basis of incomplete information.

Synonym of Conjecture is Guess