Suppose the following variables:

char dest$[10]$;

char str$[10]=\{\text{'}$c$\text{'},\text{'}$a$\text{'},\text{'}$t$\text{'}\}$;

Which of the following statements is true?

Question $4$ options:

strnlen$($str$,10)$ will only read valid memory

strcpy$($dest$,$ str$)$ will never overflow the dest buffer

strlen$($str$)$ will always return $3$

strnlen$($str$,10)$ will always return $3$

strncpy$($dest$,$ str$,10)$ will always write a null terminator