What is the expected output of the following code if the file named non_zero_length_existing_text_file is a non-zero length file located inside the working dire...

What is the expected output of the following code if the file named non_zero_length_existing_text_file is a non-zero length file located inside the working directory?

A. -1 B. 0 C. an errno value corresponding to file not found D. 1