Which of the Following Is True of the Election of the UN

Which of the following is true of the election of the UN Secretary General who came to power in 2017?

A) For the first time,a woman was elected secretary general.
B) For the first time,all candidates appeared before the General Assembly to present platforms and answer questions,as the election was highly contested.
C) For the first time,the election was won by a candidate that was not from Western Europe.
D) For the first time,the winner had not previously held a position in the UN.