A Co is a company which specializes in forestry. It has recently purchased B Co$,$ which runs a chain of recreational resorts. A has allowed B to build several new resorts on land which is owned by A$,$ but which it is no longer able to use. The resorts have proven highly profitable and popular. Which of the following best explains the reason for the improved performance of the combined entity?

A Specialization

B Social interactivity

C Synergy

D Service