Option 4 is the answer... Hope it helps
Answer:
I would say becasue it essentially mimics the American system. If small committee chose the president, it wouldn't be representitive of the "people" or the majority.
Explanation:
Preposition, adverb, preposition, preposition
Answer:
confidentiality: This mean a private stuff or a private document
Expert witnessing: This means a professional seeing something directly
Engineers' approach to risk: This means an Engineer going to a dangerous place