Johnston Chemicals' President Is Very Excited About the Possibility of the Firm's

Johnston Chemicals' president is very excited about the possibility of the firm's British subsidiary having access to customers in the entire EU. He realizes that it will be some time before this area truly becomes one market, primarily because of differences in:

A) available advertising media.
B) cultural factors.
C) legal challenges.
D) technological advances.
E) economic environmental factors.