Answer: A) establish a system of checks and balances to challenge the CEO regarding proposed acquisitions.
Step-by-step explanation:
If Andrew feels like the CEO is overly focused on making an acquisition with no business basis to it, it would be best to find out if there are basis to what the CEO is trying to do.
One way of doing so is to get the Board of Directors to establish a system of checks and balances that will challenge the CEO when it comes to acquisitions. They will check to see why the CEO wants those acquisitions as well as limit the CEO's power to seek acquisitions haphazardly.