Question:
Who was the head of Belgium in Nov, 2015?

Context:
 Sophie Wilmès is the head of the government of Belgium from Oct, 2019 to Oct, 2020. 
 Charles Michel is the head of the government of Belgium from Oct, 2014 to Oct, 2019. 
 Alexander De Croo is the head of the government of Belgium from Oct, 2020 to Dec, 2022.

Answer:
Charles Michel