Stress Is Proportional to Strain Means That:
A)stress = Constant $\frac{\text { constant }}{\text { strain }}$

Stress is proportional to strain means that:

A) stress = constant * strain.
B) stress = (constant 1) * strain + constant 2.
C) stress = $\frac{\text { constant }}{\text { strain }}$ .
D) stress = $\frac{\text { constant } 1}{\text { strain }}+\text { constant } 2$ .
E) stress * strain = constant.