Oasis : Sand :: Island : ?

Options

A. River
B. Sea
C. Water
D. Waves

Explanation

To solve the analogy "Oasis : Sand :: Island : ?", we need to understand the relationship between the first pair of words (oasis and sand) and then apply that same relationship to the second pair (island and the missing word).

### Step-by-Step Solution:

1. **Identify the Relationship in the First Pair**:
- An oasis is a fertile area in a desert, which is primarily made up of sand. Thus, the relationship is that an oasis is found within or surrounded by sand.

2. **Analyze the Second Pair**:
- An island is a piece of land that is surrounded by water.

3. **Establish the Corresponding Element**:
- Just as an oasis is surrounded by sand, an island is surrounded by water.

4. **Conclusion**:
- Therefore, the missing word that completes the analogy is "water".

### Final Answer:
Island : Water

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