Read the passage from "Children of the Wartime Evacuation.”

In January 1941, Sheila Shear and her sister were evacuated from east London to the Chilterns and billeted with a bachelor called Harry Mayo. They came from very different backgrounds – the Shears were Jewish, he was Christian – but an affectionate bond developed between them. Weekly visits and holidays with Uncle Harry, as they came to know him, continued long after the war had ended.

–"Children of the Wartime Evacuation,”
Julie Summers

What is the main topic of this excerpt?

London’s culture compared to the Chilterns’
the wide range of backgrounds found in England
the connections between the Jewish and Christian faiths
the bond between the Shear sisters and Henry Mayo