Directions: Select the most appropriate option to fill in the blank in the given sentence. A ______ of small stones is called a mosaic.

Explanation

The correct answer is 'Pattern' Key Points In the given blank, we need a noun because before the blank we have an indefinite article. Let's see the meaning of the words- Structure → The quality of being well organized. Mound → A large pile or quantity of something. Pattern → A regular form or sequence or an arrangement. Design → The art of action or planning. Mosaic → is a picture or pattern produced by arranging together small pieces of colored stones. So according to the meaning of mosaic, the correct answer is 'pattern'