The correct image to replace the question mark is (d) the needle, which corresponds to option A.

The relationship in the analogy is Material : Application Tool.

Logical Breakdown

• 
  First Pair (Top Left): The first image is a Paint Can (containing the material, paint) and the second is a Paint Brush (the tool used to apply the paint).
  


• 
  Second Pair (Top Right): The third image is a Spool of Thread (the material). Following the same logic, the fourth image must be the primary tool used to apply or work with the thread.
  

Conclusion

The primary tool for sewing with thread is a needle. Image (d) shows a needle. Therefore, it correctly completes the analogy:

Paint is to Paintbrush as Thread is to Needle.