Consider the following statements 
(A) Slope $\left(\mathrm{i}.\mathrm{e}.,\frac{\mathrm{dy}}{\mathrm{dx}}\right)$  is positive if y increases with increase in x.
(B) Slope of a straight line is a variable quantity.
Select the correct options

Slope $\frac{\mathrm{dy}}{\mathrm{dx}}$ represents rate of change of y with corresponding change in x. A positive slope indicates increase in y when x increases.

Slope of a straight line $y=mx+c$ is $\frac{dy}{dx}=m$ which is constant.