Choice B is the correct answer. Check for constant differences vs constant ratios.

1. Table I: Differences are $10-5=5$ and $15-10=5$ (constant). This is linear.
2. Table II: Ratios are $\frac{10}{5}=2$ and $\frac{20}{10}=2$ (constant). This is exponential.
3. Conclusion: Only Table II is exponential.

💡 Strategic Tip: Exponential functions have constant ratios between consecutive terms, while linear functions have constant differences.

Choice A is incorrect because Table I shows constant differences (linear). Choice C is incorrect because only one table is exponential. Choice D is incorrect because Table II is exponential.