(D) Angela Dorothea Merkel is a German politician serving as Chancellor of Germany since 2005. She served as the leader of the centre-right Christian Democratic Union(CDU) from 2000 to 2018.Johann Schneider-Ammann was President of Switzerland from 1 January, 2016 to 31 December, 2016. Ueli Maurer was elected President of the Swiss Confederation for 2019 on 5 December, 2018. It is his second presidential year, the first was 2013.Enrique PeñaNieto served as the 57th President of Mexico, from 2012 to 2018. Hage Geingobis the third and the current President of Namibia, in office since 21 March, 2015.