A. 23 May 2016
B. 21 May 2017
C. 22 June 2018
D. 24 June 2019
🧠 Explanation:
The UK’s EU referendum, or Brexit, occurred on June 23, 2016, not May 23, shaping global politics. For political science students, Brexit highlights national sovereignty debates, making it a key topic for studying European politics, referendums, and geopolitical shifts.
