Which of the following is the primary role of the President of the European Commission?

The primary role of the President of the European Commission is to oversee the implementation of EU laws. This individual is essentially responsible for ensuring that the laws and policies proposed by the Commission are executed effectively across member states. This oversight includes coordinating the work of the Commission, setting the political agenda, and ensuring that various departments and agencies within the Commission operate in alignment with EU objectives.

In addition to this primary role, the President also acts as a key figure in representing the Commission in interactions with other EU institutions, but the direct responsibility for law implementation is central to their function. While roles related to foreign policy and budget management are important aspects of the broader EU governance framework, they fall outside the President's primary responsibilities. The same applies to trade negotiations, which involve other EU institutions or representatives more directly.