In this verbal reasoning question, select the odd word pair from the given alternatives, where three pairs show similar meaning relationships and one pair has a different type of relationship.

Introduction / Context:
This is an odd one out question framed in the style of word pair analogies. You are given four pairs of words, and you must identify the pair whose relationship differs fundamentally from the relationships in the other three pairs. Three of the pairs are broadly similar in that they express similarity or close association, while one pair expresses a clear opposite relationship. Detecting whether a pair shows synonymy, antonymy, or some other link is key in such questions.

Given Data / Assumptions:

• Option A: Quick : Fast. • Option B: Lazy : Slow. • Option C: Credible : Deceptive. • Option D: Exhaust : Tired. • We interpret quick and fast as near synonyms, while credible and deceptive are clear opposites in meaning.

Concept / Approach:
We examine each pair to see whether the words are synonyms, antonyms, or related in a cause effect way. Quick and fast both indicate high speed, so they are synonyms. Lazy and slow can often go together as similar traits in behaviour, though not perfect synonyms, and are usually used in a related sense. Exhaust and tired are also closely linked, with exhaustion leading to tiredness. Credible and deceptive, however, stand in a direct opposite relationship: credible means believable, while deceptive means misleading or lying. Thus, option C is structurally different from the rest.

Step-by-Step Solution:
Step 1: Analyse Quick : Fast. Both words describe high speed or rapid action. They are near synonyms. Step 2: Analyse Lazy : Slow. A lazy person tends to act slowly or without energy; slow describes a pace that is not fast. These words are strongly associated in everyday usage and can be seen as similar behaviour traits. Step 3: Analyse Exhaust : Tired. To exhaust someone is to make that person very tired. There is a direct cause effect relation, and the words are strongly related in meaning. Step 4: Analyse Credible : Deceptive. Credible means believable or trustworthy. Deceptive means misleading, dishonest, or intended to deceive. These meanings are opposite: one suggests trust, the other suggests trickery and lack of trust. Step 5: Conclude that while A, B, and D show similarity or close association in meaning, C shows contrast or antonymy, so C is the odd pair.

Verification / Alternative check:
Try replacing each pair with “similar words” or “opposite words”. Quick and fast fit “similar”. Lazy and slow often fit “similar” or at least “closely related traits”. Exhaust and tired also fit a close connection. Credible and deceptive fit more naturally into “opposite in meaning”, which sets this pair apart. Because we need the odd pair with a different relationship, Credible : Deceptive is the answer.

Why Other Options Are Not Odd:
• Quick : Fast – clear synonym pair. • Lazy : Slow – linked behavioural concepts that often describe a similar style of action. • Exhaust : Tired – one leads to the other and both revolve around fatigue, not opposition.

Common Pitfalls:
Some learners may see Lazy and Slow as a cause effect pair and suspect it is the odd one out. However, all three non chosen pairs share a broadly similar or closely associated meaning, whereas Credible and Deceptive directly contradict one another. Focusing on whether the relationship is similarity or opposition is the best way to avoid confusion here.

Final Answer:
The odd word pair in this set is Credible : Deceptive.