Arthur has just checked in a class that was so technically challenging that he is the only person who understands it, nor has he written any documentation to explain it. One of the team members complaining, but Arthur has ignored this and has begun working on the next class. What is problematic about this situation? O a. Class should not be in until sufficient documentation exists. O b. Class should not be in until a test exists. O c. Arthur should not have begun working on the next class until the previous one was validated. O d. All code is collectively owned and maintained by the team. Oe. There is conflict on the team that should be dealt with immediately