Answer:
Option A is correct.

Step-by-step explanation:
The intercept form of the equation of plane is given by:
.....[1]
where
l is the intercept of x-axes
m is the intercept of y-axes and
n is the intercept of z-axes respectively;
From the given figure;
we have;
The intercepts of coordinates axes are;



Substitute these values in the equation [1]; we have;
Taking LCM of 3, 2 and 6 is 6

therefore, the equation of plane that contains the triangle as shown in the diagram is, 