What are THREE key challenges that are typical for outsourcing?

Instead of having an independent test team within the company, the company is considering to outsource testing .

What are THREE key challenges that are typical for outsourcing? 1 credit
A . Test environment more complex
B . Define expectation for tasks and deliverables
C . Clear channels of communications
D . Possibly different cultures
E . Testing of non-functional requirements
F . Audit trail from requirements to test cases
G . Applying test automation

Answer: B,C,D