which measurement indicates the total assembly length? a b c d

which measurement indicates the total assembly length? a b c d
Answer
Explanation:
Step1: Identify total - length concept
The total assembly length is the measurement from one end - point of the assembly to the other end - point.
Step2: Analyze options
Looking at the diagram, option D measures from the outermost point on one side to the outermost point on the other side of the assembly.
Answer:
D