Answer: B. Britain was more densely populated in 1911 than in 1701.
Step-by-step explanation:
In the map below, the darker colors are used to denote a heavier population density. Looking the map you will notice that there are more darker colors in 1911 then in 1701 which would mean that Britain as a whole was more densely populated in 1911 than in 1701.
This was down to Britain becoming a World Military and Economic power. These two factors meant that more prosperity was due to Britain which enabled it to reduce the mortality rate of its people in the so called Mortality Revolution.