The Mars acquisition of the Wrigley assets was part of its related constrained diversification and added market share to the

Mars Wrigley Integrated Firm

Explanation:

This acquisition provided the extended reach to the company, as with this merger  of both the companies, there are certain assured benefits:

1) Increase in sales value by selling at a price higher than the prevailing price in the market, or

2) Decreasing the cost of product manufacturing as prevailing in the industry for that product.

This joint would automatically gain the major share in the market as with increase in profits and  diversification in providing goods, expands the company in all respects.

answer; common market;

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy