The mcmillan development corporation is in the preliminary stages of building a commercial office development. they have received the building permit and all of the necessary approvals to break ground. where do they go for guidance on the types of materials approved for construction, electrical wiring, etc.?

D. Both B and C

Explanation:

Based on the information provided within the question it can be said that you must go to The Building Codes  and Building Officials Conference of America. This is where every company must go in order receive the guidelines of the materials that are approved by the government for all development procedures including construction, electrical wiring etc.

the third answer is correct.

answer; decentralized;