what in British history links these four countries? How does this help explain why people from these countries are among London's largest immigrant populations?

1.The majority of these are from outside Europe, often from countries with historical links to the UK. More than three million people - roughly a third of the immigrant population - come from Commonwealth countries such as India, Jamaica, Australia and Nigeria.

2.According to the United Nations, in 2019, the United States, Germany, and Saudi Arabia had the largest number of immigrants of any country, while Tuvalu, Saint Helena, and Tokelau had the lowest.

Explanation: