What is the equation of the plane that contains the triangle shown in the diagram *answers in question*

Consider, pls, the offered option:
1. knowing points on the graph (2;0;0), (0;5;0) and (0;0;4) it is possible to check an equation.
2. only equation 10x+4y+5z=20 is right if to substitute coordinates in it.
Answer: 10x+4y+5z=20