Question $4$

$1$ pts

Which of the following statement would you use to check if you have reached the end of a line, while reading one character at a time in variable "letter"?

if$($letter $==\text{'}|n^{\text{'}}|$

if$($letter $==$ EOF$)$

if$($letter $\text{'}|n^{\text{'}}|$

if$(!$letter$)$