To solve the problem, we need to identify two planes that intersect along the line $WX$ in the given diagram of a rectangular prism.

From the diagram, the line $WX$ connects points $W$ and $X$ and is the intersection of two planes that share this line.

• Plane 1: The plane formed by $W, X, V, U$ (denoted as plane $VUX$) contains the line $WX$.
• Plane 2: The plane formed by $W, X, S, T$ (denoted as plane $XTS$) also contains the line $WX$.

Now, checking the answer options:

• A. Plane VUX and Plane VWS: Incorrect, as VWS doesn't intersect in line $WX$.
• B. Plane UVR and Plane XTS: Incorrect, UVR doesn't intersect at $WX$.
• C. Plane UVW and Plane UVR: Incorrect, neither of these planes contains $WX$.
• D. Plane UVW and Plane XTS: Correct! Both planes UVW and XTS intersect in $WX$.

Thus, the correct answer is D.

Let me know if you would like a detailed breakdown or have any questions!

Here are 5 related questions to explore:

1. What is a plane in geometry, and how do you define it?
2. How do you determine the intersection line between two planes?
3. What are the properties of a rectangular prism in 3D geometry?
4. How can you calculate the angle between two intersecting planes?
5. How do you determine the equation of a plane given three points?

Tip: When determining the intersection of planes, always look for shared edges or lines within the geometry.