To determine which two drawings (A, B, C, or D) match the structure of object $X$, we need to carefully analyze and compare their orientations and configurations.

Step-by-Step Analysis:

1. Shape Analysis of $X$:

   • Object $X$ consists of a "zigzag" shape formed by a 3D arrangement of blocks.
   • Observing the relative orientation of the blocks, we see that it makes two turns: one in a horizontal plane and one in a vertical plane.

2. Comparison with Each Option (A, B, C, D):

   • Option A: The structure has a similar zigzag form with two turns, but the orientation of the blocks does not match object $X$.
   • Option B: This structure has a close resemblance to $X$ in terms of block configuration and orientation.
   • Option C: The shape does not match; the blocks are arranged differently from those in $X$.
   • Option D: This also closely matches $X$ in terms of both configuration and orientation.

Conclusion:

The correct answers are B and D, as these two match the structure and orientation of object $X$.

Would you like further explanation or details on each comparison?

Related Questions:

1. How can we identify 3D shapes from different perspectives?
2. What techniques help in visualizing 3D rotations in spatial reasoning tests?
3. How can we practice recognizing mirror images versus rotations?
4. What are some tips for analyzing 3D shapes in competitive exams?
5. How does spatial awareness improve problem-solving in geometry?

Tip:

When comparing 3D shapes, try mentally rotating one of the objects to see if it matches another—this technique is often helpful in visual puzzles.