Which answer figure completes the form in the question figure? 

In figure completion problems, look for:
• Rotation or reflection of shapes
• Consistent movement of shaded parts
• Elements that remain unchanged
Step 1: Observe the given question figure: It is a 2 × 2 arrangement where three parts are given and one part (top-left) is missing.
Step 2: In each small square:
• The diamond with a central dot remains common.
• The black triangular portion shifts its position in a systematic manner (rotational pattern).
• The orientation of the outer lines remains consistent across the grid.
Step 3: The missing figure must:
• Contain the same diamond–dot structure.
• Have the black triangular region placed such that the rotation pattern is completed.
Step 4: Among the given options, only figure (b) correctly completes both the rotational and positional pattern.
Which one of the following diagram represents the correct relationship among Colour, Black and White. 
Which one of the following diagram represents the correct relationship among Colour, Black and White. 
Find out the alternative figure which contains figure (X) as its part. 