Which of the following statements are true?
```
a. If a file (e.g., c:\temp.txt) does not exist, new File("c:\\temp.txt") returns null.
b. If a directory (e.g., c:\liang) does not exist, new File("c:\liang") returns null.
c. If a file (e.g., c:\temp.txt) does not exist, new File("c:\\temp.txt") creates a new file named c:\temp.txt.
d. If a directory (e.g., c:\liang) does not exist, new File("c:\liang") creates a new directory named c:\liang.
e. None of the above.
```
e. None of the above.
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