With reference to file handling in Python, which of the following statements are true?
a. The open() function does not create a new file if the file does not exist.
b. Files are opened in text mode by default.
c. The offset position when a file is opened in <+a> mode is end of file.
d. The file pointer is at the start of the file only when opened in
1
b, c
2
a, c, d
3
b, d
4
a, b, c, d