4. Which point on the following diagram relates to the following description. \[ y>0, \frac{d y}{d x}<0, \frac{d^{2} y}{d x^{2}}<0 \]

Step 1 ：Translate the given conditions into English: The point on the graph has a positive y-value, a negative first derivative, and a negative second derivative.

Step 2 ：Find the point on the graph that satisfies these conditions.

Step 3 ：Final Answer: The point on the graph that satisfies the given conditions is \(\boxed{A}\).