The degree of comparison for 'MORE COLORFUL' is Comparative degree.
B. Comparative
Explanation:
There are three degrees of comparison of adjectives. They are positive, comparative and superlative degrees. The positive degree is used to tell the quality of one thing. The comparative degree is used when two things are compared and the superlative degree is used to compare more than two things or people. In the above sentence, the end product and the initial is being compared, therefore the degree of comparison used is comparative degree.
