- ARim
- BWheel
- CBicycle
- DAxle
Step-by-Step Solution
The relation is part : the immediate whole that part belongs to. A petal is one component of a flower; a spoke is one component of a wheel. 'Rim' and 'Axle' tempt because they sit right beside the spoke, but they are fellow parts, not the whole. 'Bicycle' is a whole, yet it is one step too far out — the petal is not compared with the plant, only with the flower.
Answer: B) Wheel