What color and size of conductor should be used for cathodic bonding?

The correct choice for cathodic bonding specifies using at least #8 AWG conductors that are either green or green with a yellow stripe. This is in alignment with industry standards and safety codes, which designate green or green with a yellow stripe to identify grounding and bonding conductors.

Using conductors of this specific size ensures that they are capable of carrying the required current load during fault conditions without overheating or causing additional issues. #8 AWG is the minimum size recommended in most installations for durability and efficacy in corrosion prevention practices. Cathodic bonding is crucial for preventing galvanic corrosion by equalizing potentials between metallic components in a marine system, which is why using the proper size and color ensures effective operation and compliance with relevant standards.

The other options do not fit these critical criteria, as they suggest incorrect sizes or colors that do not indicate the required connection for bonding.