In 1348 a third of the populations of England, Wales and Scotland died as a result of which plague?

1348 年，英格蘭、威爾士和蘇格蘭有三分之一的人口死於哪種瘟疫？

• The White Death 白死病
• The Black Death 黑死病
• The Blue Death 藍死病
• The Green Death 綠死病

Source: Page 22, The Middle Ages, Life in the UK - A Guide for New Residents (3rd Edition)