What must all contractors include in their subcontract agreements regarding nondiscrimination?

The correct choice highlights the necessity for contractors to incorporate specific nondiscrimination provisions that are pertinent to their subcontract agreements. This requirement ensures clarity and compliance with legal standards that protect against discrimination on various grounds, such as race, gender, religion, and disability.

By including these relevant nondiscrimination provisions, contractors not only reinforce their commitment to equitable treatment in their business practices but also align themselves with broader legal and ethical mandates that advocate for fair employment and service provision. Such clarity in agreements helps prevent discrimination-related disputes, fostering an inclusive environment in the workplace and beyond.

In contrast, mentioning general clauses about employment issues doesn't specifically address the importance and nuances of nondiscrimination practices. Including only salary information would overlook the broader scope of discrimination protections and the various forms it can take. Lastly, while establishing procedures for resolving disputes is vital for handling conflicts, it does not directly pertain to the need for explicit nondiscrimination language in subcontract agreements.