how does an artist using brush and ink often control the value of the ink?\n a by using different values of…

how does an artist using brush and ink often control the value of the ink?\n a by using different values of ink\n b by changing the drawing tool\n c by diluting it with water\n d by using different values of paper\n e by scratching the surface of the paper
Answer
Brief Explanations:
Diluting ink with water changes its concentration, thus controlling its value (lightness or darkness). Using different ink values is circular reasoning, changing the drawing tool doesn't directly control ink value, paper value doesn't affect ink value, and scratching paper doesn't control ink value.
Answer:
C. By diluting it with water