Which of the following would do the same as the command cat file2.txt?

Which of the following would do the same as the command cat < file1.txt > file2.txt?

A.
cat < file1.txt file2.txt

B.
cat file1.txt >file2.txt

C.
cat <file1.txt | file2.txt

D.
cat file1.txt | file2.txt

E.
cp file1.txt>file2.txt