Which of the following statements is true regarding title examinations of commercial properties?

A) Approval of local government zoning authorities may be needed.
B) An environmental regulator may need to sign off on the property's use.
C) There may need to be investigation for prior environmental contaminants.
D) All of these choices are correct.

All of the statements are true regarding title examinations of commercial properties. Approval from local government zoning authorities may be required to ensure the property's use complies with local zoning laws. Environmental regulators may need to approve the property's use, especially if it involves hazardous materials or could impact the environment. Additionally, investigating for prior environmental contaminants is crucial to avoid liability and ensure the property is safe for its intended use.