【单选题】

When you fly, fly withBelAir.

People who travel a lot fly withBelAir, because they know they will get what they want.
They want to go quickly, and safely, across the country, across the sea, or right across the world— and they knowBelAir will take them where they want to go, when they want to go.BelAir flies all the newest and fastest aero planes, to more towns and cities, in more countries of the world, than any other airline.
Do you want to go to Paris, Washington, or TokyoBelAir will take you there, at all times of the day or night, right through the week.ButBelAir flies not only to the big cities, in the rich countries— we fly two or three times a week to towns and cities in the very heart ofAsia,Africa and SouthAmeric
A、
People who travel a lot fly withBelAir, because they know they will leave on time, and arrive on time. They know that the food they will receive, and the films they will watch, will be of the very best.
BelAir is second to none.

When you fly, fly withBelAir.

"In the very heart ofAsia" means______.
A、all overAsia
B．near the sea inAsia
C．the biggest city inAsia
D．right in the middle ofAsia