What should be considered to create balance in a sketch?

Correct answer: Proper distribution of objects and empty space

The governing concept is compositional balance, which is created by distributing visual weight across the page. The artist should consider the size, position and grouping of objects together with the surrounding empty or negative space. Putting everything in one corner creates imbalance, one line gives no complete arrangement, and blackening every area removes tonal hierarchy. Thus option A is correct.