Four bulbs; red, green, white and blue (denoted by $R,G,W$ and $B$ respectively) are kept in front of a converging lens (as shown in the figure below). The observer sees that the green and blue bulbs are kept to the left of the principle axis while the red and white bulbs are kept to the right of the principle axis. He also see that the red and green bulbs are above the principle axis while the white and blue bulbs are below the principle axis. The screens $S_1$ and $S_2$ are set at appropriate positions for the focusing to view the images.

Choose the figure that correctly represents the images as seen by the observer.

• Correct answer
  A

  
• B

  
• C

  
• D

  

Hence, the correct answer is option: 'A'.