Which of the following statements about patent agencies are correct?

Which of the following statements about patent agencies are correct? (BCD)

A. The patent agency applying to establish an office should have more than 5 patent agents

B. A partnership patent agency should be jointly funded by three or more partners.

C. A limited liability patent agency should be jointly funded by more than five shareholders ***

D. Partners or shareholders of a patent agency should be able to engage in patent agency business full-time