Contracts often stipulate that the contract may be discharged if the professional member determines that

NPPE materials and standard contract forms recognize that professionals have a duty to protect health and safety. Contracts commonly include clauses allowing suspension or termination of services if unsafe working conditions exist.

Option B is correct because safety concerns justify discharge or suspension of contractual obligations. Payment disputes or non-compliance issues may lead to remedies, but they do not typically justify immediate discharge by the professional on safety grounds alone.