In a 2-gang box containing a 2-wire NM cable and a 3-wire cable with a ground, how should conductors be counted for box fill?

• A. Count only ungrounded conductors.
• B. Count each conductor that originates or terminates in the box; grounds count as one; add for internal clamps and device yokes.
• C. Count all conductors including grounds separately.
• D. Grounds do not count toward box fill.

Answer: (B)