In the following question, out of the four alternatives, choose the word which…

An antonym is a word that expresses a meaning opposite to that of a given word. To solve such questions, first determine the precise meaning of the given word, then compare it against each option's core meaning to find the one that conveys the reverse sense.

Conundrum means a confusing and difficult problem or question — something that creates uncertainty. Clarification means an explanation that makes a confusing matter clear and easy to understand. Since clarification directly removes the confusion that a conundrum represents, it conveys the opposite sense and is therefore the antonym.

Why the other options do not fit

• Anagram: a word or phrase formed by rearranging the letters of another (e.g., 'spar' and 'rasp'); this is a wordplay concept unrelated to confusion or clarity, so it is neither a synonym nor an antonym of conundrum.

• Paradox: a seemingly contradictory or absurd statement that itself creates confusion; this meaning aligns with — not opposes — a conundrum.

• Inconsistency: a lack of uniformity or irregularity; this describes a different quality altogether and does not express the reverse of "a difficult, confusing problem."

Since clarification is the only option that reverses the core sense of confusion carried by conundrum, it is confirmed as the correct antonym.