Smaller answer is d
Because in Japan more that 400,000 citizens left in a year, and move to another country due to the pandemic
The answer is D) People of the Book
In Islamic law, people of the book are those people who followed Abrahamic religious and received holy books. Hence, the people who follow the books of Gospel, Torah, Palms, and the Quran are called people of the Book.
In this context it could mean either the Christians, Jews or even Sabians
Caves, i think is your answer. If not what are the choices?