The shading used in the drawing below is .....
img src = 'https://acada-past-question.us-east-1.linodeobjects.com/bece/cca/obj/exam/question/p1/i2021q28.png' width = '100%'>

• A.blurring
• B.cross-hatching
• C.hatching
• D.pointillism
• E.smudging