The Figure Below Shows the Supply Curves for Gasoline for Two

The figure below shows the supply curves for gasoline for two oil companies (MaxOil and MagnusPetro) . It would be useful to find the equations of the two supply curves to answer the questions below.

-Refer to the figure above. The total demand curve has the vertical intercept at ________ and its slope changes at ________.

A) 5.00 euros; 10.00 euros
B) 5.00 euros; 7.00 euros
C) 2.00 euros; 5.00 euros
D) 2.00 euros; 7.00 euros