The missing tile is option C.
What is the missing tile?
The diagram consists of a triangle, circle and square
Column 1:
Triangle with dots and plain
Circle with black
Square with plain white and dots
Column 2:
Circle with plain white and black
Square with dots
Triangle with black and plain white
Column 3:
Square with black and dots
Triangle with plain white
Circle with black and dots
Therefore, Circle with black and dots is the missing tile.