Microscope - is used to see small object which cannot be seen by naked eye
telescope - is used to see object which are situated at a long distance eg. sun, moon , planet
periscope -The uses of a periscope include observation around barriers and at times when viewing a location directly would be dangerous. Periscopes are typically used in submarines to see above the water.
Camera - is used to capture photos of objects.
Thus matching will be
A - 2 , B - 3 C - 1 and D - 4
hence Option D is correct.