Choosing an output medium of ________ creates a page format that is suitable for creating transparencies

Which of the following positions the file pointer for a file that has been opened for reading and writing?

a) Use the size() member function on the file stream to position the file pointer. b) Use the seekp(arg) fstream member function with the number of records (counting the first record as 0) as argument to position the file pointer. c) Use the seekp(arg) fstream member function with the number of bytes to the record in question (counting the first byte as 0) as argument to position the file pointer. d) Use the sizeof operator to determine the number of bytes in the file stream.

Explain why it is important to back up your database before running an action query.

What will be an ideal response?