Nothing

A value 0 or 1 depending on whether the file could be opened or not.

A pointer to FILE filename,if it exits

A pointer to a new file after creating it.

Data in a file

stderr

stdin

string

items

inven.txt

either (a) or (b)

None of these

The file sample does not exist while fopen is being executed

The file sample could not be created for writing

fpt is declared as a FILE pointer

The file sample is read only

fp is a file pointer

position the read-write-head at the start of the file

position the read-write-head at the end of the file

None of these