When writing conditions in conditional statements for shell scripts, there are options that can be used to check if a file exists. It will return true if the file exists and also if other properties per option are true. Which of the following options can be used to check for the existence of a file?

$-$M$,$ true if file exists and is mutable

$-$B$,$ true if file exists and is writeable

$-$Z$,$ true if file exists and is non$-$readable

$-$A$,$ true if file exists