A. The Netherlands
Wrong: The Netherlands is the host country of the International Criminal Court which is based in The Hague. However, the Netherlands was not the first country to ratify the Rome Statute.
B. Côte dIvoire
Wrong: Côte dIvoire is the country that has most recently ratified the Rome Statute, on 15 February 2013.
C. Senegal
Correct: Senegal was the first country to ratify the Rome Statute, on 2 February 1999.
D. Italy
Wrong: It is true that treaty establishing the International Criminal Court was adopted in Rome, in Italy this is why this treaty is called Rome Statute. However, Italy was not the first country to ratify the Statute.