Unlike firms that outsource, firms engaged in offshoring: a. manage to reduce travel expenses.
b. are able to enforce intellectual property rights easily.
c. maintain ownership of the facility in another country.
d. have better control on quality.

C)maintain ownership of the facility in another country.

Explanation:

offshoring can be simply explained as activities of a company winding in-house jobs which are required to take place in another country. For instance when a company that base in US produce their products in Germany.

It should be noted that Unlike firms that outsource, firms engaged in offshoring maintain ownership of the facility in another country.