What is the smallest shovel that can be used for cleaning?

A. 2 inches B. 4 inches C. 6 inches D. 8 inches

The correct answer is B. 4 inches

A 4-inch shovel is the smallest shovel that can be used for cleaning. It is long enough to reach most surfaces and can be used for a variety of cleaning tasks, such as removing dirt, grime, and debris from floors, walls, and windows.