```Instructions: After each of the following sentences in questions 36-40, a list of possible interpretations of the sentences are given. Choose the interpretation that you consider most appropriate for each sentence```
The last promotion exercise was the bone of contention between the two friends. This means that the last promotion exercise

• A.was the cause of their dispute
• B.forced them to reason together
• C.make them become enemies
• D.united them in their fight against their common enemy