I don't know what that question is specifically asking for, but for these type of tasks, I would always firstly use PESTLE to figure out the broader ramifications of the deal and then in a structured approach go through the main practice areas and discuss how they may have been involved in the deal, it would be beneficial and you could show off your research by discussing W&C unique teams or approaches to work who may have played a part in the deal e.g if it is an energy deal does W&C have a specific energy transition team or do they take a broader ESG approach.