(A) Nordic countries
Nordic countries had the highest women's representation in national parliaments at 42.3% (as of 1 October 2018), far above Americas (29.5%), Europe (26.4%), and Asia (19.8%).
Source: Gender, Religion and Caste, Chapter 3, Women in National Parliaments table.
---
The data table in the chapter clearly lists Nordic countries at 42.3% — the highest figure. Examiners expect you to state the answer and the supporting percentage. No other region comes close, making this straightforward data recall.