The correct answer is option 2: Dominique Strauss-Kahn. He is the Managing Director of the International Monetary Fund (IMF). The IMF is an international financial institution that provides loans and financial assistance to countries experiencing economic difficulties. The Managing Director is the highest-ranking official within the organization and is responsible for overseeing its activities and making important decisions.

Option 1, Rodrigo Rato, is not the correct answer. Rodrigo Rato is a Spanish politician and former Managing Director of the IMF, but he is not currently in that position.

Option 3, Daniel Vasella, is also not the correct answer. Daniel Vasella is a Swiss businessman, but he has no connection to the IMF or the position of Managing Director.

Option 4, Alberto Foutana, is not the correct answer either. There is no information available regarding an individual named Alberto Foutana in relation to the IMF or its leadership positions.

In conclusion, the correct answer is Dominique Strauss-Kahn. Alert - correct answer should be Kristalina Georgieva, who succeeded Dominique Strauss-Kahn as the Managing Director of the IMF in 2019.