Some of these factories have been torn down. Some of them have been converted to artists’ studios.

Some of these factories have been torn down. Some of them have been converted to artists’ studios.
A. Some of the factories have been torn down or converted to artists’ studios.
B. Some of the artists’ studios have been torn down or converted to factories.
C. Many factories have been torn down or converted to artists’ studios.
D. Several factories have been torn down or converted to artists’ studios.

Đáp án A