The two pieces of code that follow have the same logical functionality but different structure. Which statement about them is TRUE?

Version $1.$

void foo$($bool x$,$ bool y$)\{$

if $($x$)\{$

if $($y$)$ z$()$;

$\}$

else $\{$

if $($y$)$ w$()$;

$\}$

$\}$

Version $2.$

void check$\_$y$\_$z$($bool val$)$;

void check$\_$y$\_$w$($bool val$)$;

void def foo$($bool x$,$ bool y$)\{$

if $($x$)\{$

check$\_$y$\_$z$($y$)$;

$\}$

else $\{$

check$\_$y$\_$w$($y$)$;

$\}$

$\}$

void check$\_$y$\_$z$($bool val$)\{$

if $($val$)$ z$()$;

$\}$

void check$\_$y$\_$w$($bool val$)\{$

if $($val$)$ w$()$;

$\}$

Version $1$ cannot be tested to $100\%$ C$2$ coverage.

Version $1$ has higher per$-$function cyclomatic complexity than Version $2.$

Version $2$ cannot be tested to $100\%$ C$2$ coverage.