An assembly diagram for a piece of equipment shows a part labeled with a balloon number pointing to it. What is the primary purpose of this balloon number?
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A
To indicate the torque specification for the part's fasteners.
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B
To cross-reference the part with a detailed list of components, such as a Bill of Materials.
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C
To show the order in which the part should be painted.
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D
To specify the electrical voltage the part can handle.