- AHeights
- BWater
- CFire
- DDarkness
Step-by-Step Solution
The relation is the name of a dread : the thing dreaded. Claustrophobia is the dread of shut-in spaces; acrophobia is the dread of heights, which is why a sufferer cannot look down from a tall building. The distractors belong to the neighbouring dreads that share the same ending — water to hydrophobia, fire to pyrophobia and darkness to nyctophobia.
Answer: A) Heights