Who was the Commissioner in charge of Informatics and ICT Research in the European Commission in 2017?

The correct choice reflects that Mariya Gabriel was serving as the Commissioner for Digital Economy and Society in the European Commission during 2017. Her role focused significantly on various aspects of informatics, including promoting digital technologies, enhancing connectivity, and fostering innovation in the ICT sector across Europe. Gabriel's work contributed to shaping the digital landscape and policies that affected ICT research and development, making her a pivotal figure in addressing the challenges and opportunities within the realm of digital technologies at the time.

The other individuals listed held important positions but were not in the specific role related to Informatics and ICT Research within the European Commission during that year. Each played their part in different capacities, but it was Gabriel who had the direct responsibility for the areas that included informatics and ICT research. This contextual understanding highlights her influence and relevance to the question asked.