Final answer:
The minimum size conductor permitted for use in parallel installations is 1/0 AWG (d).
Step-by-step explanation:
Physics Answer:
The minimum size conductor permitted for use in parallel installations is 1/0 AWG (d). This means that the conductor size is larger and can handle more current compared to the other options. The larger the wire gauge number, the smaller the wire diameter and the lower the current-carrying capacity.
For example, a 10-gauge wire has a diameter of 2.588 mm and can carry less current compared to a 1/0 AWG wire.