The phrase "angry with" is the correct usage. This phrase is used to indicate the emotion of anger directed towards a specific person or entity. In this case, the speaker is expressing anger towards Oche specifically because of their differing opinions. On the other hand, "angry about" could also be used in certain contexts, such as "I was angry about his behaviour," where the anger is directed towards a situation or event rather than a specific person. The phrase "differed with" is the correct usage to indicate that you have contrasting opinions with someone else. "With". "differed from" is used to indicate the difference between objects and ideas and does now show that someone has differing opinions from someone else. Therefore, option D, "with / with," is the correct choice.