How many different colours can GIF contain?

A. 64

B. 156

C. 256

D. 264

Correct Answer is :

C. 256

Explanation

The GIF format uses LZW compression, which is a lossless compression method. However, because GIF files are limited to 256 colors, optimizing an original 24‑bit image as an 8‑bit GIF can subtract colors from an image.