A choropleth map shows that nearly all of the countries with the lowest birth rate category (6-10 births per 1000) are in Europe.
Given this, comment on whether the hypothesis you wrote in part (a) may be correct.

The hypothesis from part (a) was that European countries have lower birth rates than non-European countries. The information provided here is that the map shows the very lowest category of birth rates consists almost entirely of European countries. This observation directly supports the hypothesis. It provides visual evidence that, as a group, European countries tend to have lower birth rates compared to countries in other parts of the world which fall into higher birth rate categories.