What is the output?

void Area$($double x$,$ double y$)\{$

cout $<<$ x $*$ y;

$\}$

void Area$($int base, int height$)\{$

cout $<<($base $*$ height$)/2$;

$\}$

void Area$($int length, int width$)\{$

cout $<<$ length $*$ width;

$\}$

int main$()\{$

int b;

int h;

b $=4$;

h $=5$;

Area$($b$,$ h$)$;

$\}$

Group of answer choices

Error: Compiler cannot determine which function to call

$20$

$10$

$16$