单选题：How could you describe the following command line?
How could you describe the following command line?@[B](1)
foo; bar; foobar
A. The commands foo, bar and foobar are processed at the same time.
B. The commands foo, bar and foobar are processed one after another.
C. The command foo is processed. If it results without error, then bar and foobar are processed.
D. The command foo is processed. If it results without error, then bar will be processed. If bar results without error, foobar will be processed.
A.The commands foo, bar and foobar are processed at the same time.
B.The commands foo, bar and foobar are processed one after another.
C.The command foo is processed. If it results without error, then bar and foobar are processed.
D.The command foo is processed. If it results without error, then bar will be processed. If bar results without error, foobar will be processed.
答案：B
foo; bar; foobar
A. The commands foo, bar and foobar are processed at the same time.
B. The commands foo, bar and foobar are processed one after another.
C. The command foo is processed. If it results without error, then bar and foobar are processed.
D. The command foo is processed. If it results without error, then bar will be processed. If bar results without error, foobar will be processed.
A.The commands foo, bar and foobar are processed at the same time.
B.The commands foo, bar and foobar are processed one after another.
C.The command foo is processed. If it results without error, then bar and foobar are processed.
D.The command foo is processed. If it results without error, then bar will be processed. If bar results without error, foobar will be processed.
答案：B