Comments are permanent entries in a document

What is wrong with the following code?

while( ! fileIn.eof() ) { fileIn >> value; fileOut << value; } a. We have read past the end of the input file and attempt to output a nonexistent value b. We have written past the end of the output file c. Nothing d. A and B

Numbers that extend beyond a cell's width appear as ____ in the cell.

A. &&&& B. ???? C. #### D. ++++