Explanation:

- When you place an object between two parallel plane mirrors, the mirrors reflect the image of the object back and forth.

- Each mirror creates an image of the object and of all the images created by the opposing mirror.

- This process continues, forming multiple reflections in both mirrors.

- Option 4: Infinite is correct because there is an endless chain of images formed.

- Option 1: 1 image is incorrect because you'd see more than a single reflection.

- Option 2: 2 images are only possible with mirrors at an angle, not parallel.

- Option 3: 4 images require a specific angle, not parallel arrangement.