Correct option is B
The most common type of wiring preferred for industrial motor connection is (b) metal conduit.
Explanation: Metal conduit provides superior protection against mechanical damage, heat, and moisture, making it the ideal choice for harsh industrial environments where motors are often used.
Key points about the other options:
PVC conduit: While sometimes used in less demanding situations, PVC is not as robust as metal conduit and may not be suitable for heavy industrial applications.
Bare metal wiring: While bare copper wires can be used in industrial settings, they typically need to be run within a conduit for proper protection.
Ribbon cable wiring: This type of cable is usually used for data transmission and is not designed for high power applications like motor connections.
