How do you summarize: "These are only some areas that a thoughtful due diligence investigation will cover. Doing your due diligence is a key factor in the success of any acquisition, before and after the closing, and for many years to come. "

a) Due diligence is essential for acquisition success, both pre and post-closing.
b) Some areas covered by due diligence include financial, legal, and operational aspects.
c) Due diligence ensures long-term success and mitigates risks in acquisitions.
d) All of the above.