Answer:
O inadequate competition.
Explanation:
In the business world, mergers and acquisitions or M&A refer to the transaction between companies resulting in the coming together of those companies under one roof. This means that M&A is the process in which two or more companies come together to be a single unit.
While the policy of uniting seems common in both mergers and acquisitions, they also have a slightly different mode of work. In a merger, two or more companies of the same size merge together, come together to be a single unit. On the other hand, an acquisition is when a larger company acquires a smaller one to form a single unit.
So, mergers and acquisitions might result in an inadequate competition, leaving the market with not enough competitors around to keep the economy moving.
Thus, the correct answer is the fourth/last option.