In plain carbon steel as the percentage of carbon increases from 0.2% to 0.8% which of the following decreases?

In plain carbon steel as the percentage of carbon increases from 0.2%

1.	In plain carbon steel as the percentage of carbon increases from 0.2% to 0.8% which of the following decreases?
A.	Brinell hardness number
B.	Tensile strength
C.	Percentage elongation
D.	All of the above
E.	None of the above
Answer» D. All of the above