Question:
Who was the head of Petriș in Feb, 2017?

Context:
 Ionel Gheorghe Berari is the head of the government of Petriș from Oct, 2020 to Dec, 2022. 
 Irina Onescu is the head of the government of Petriș from Jan, 2016 to Oct, 2020. 
 Zian Burza-Han is the head of the government of Petriș from Jan, 2004 to Jan, 2016.

Answer:
Irina Onescu