Given three collinear points, which of the following is true? a.. there is exactly one plane that contains all three points. b..they form a triangle. c. they are not coplanar. d. they are contained in multiple planes.

Option: d  is the correct answer

d.    They are contained in multiple planes.

Since, the three points are collinear.

This means that there is a line which pass through these three given points and as we know that a line always lie in a plane so all the three points will be coplanar and there may be multiple planes which contain a line.

Also, a triangle is formed with the help of three non-collinear points.

         Hence, the correct option is:

                   Option: d

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im not sure