Choice A is the correct answer. Check the growth factor for each table.

1. Table A: Ratio $\frac{8}{2} = 4$ and $\frac{32}{8} = 4$ → Base is 4 ✓
2. Table B: Difference is constant ($8-4=4$, $12-8=4$) → Linear, not exponential.
3. Equation for A: $y = 2(4)^x$.

💡 Strategic Tip: Exponential = constant ratio. Linear = constant difference.

Choice B is incorrect because Table B is linear. Choice C is incorrect because only one table is exponential. Choice D is incorrect because Table A is exponential.