What will the following code print out when it is run?

public static double add$($int a$,$ double b$)($

return a $+$ b $+3$;

$)$

public static double add$($int a$,$ int b$)\{$

return a $+$ b $+2$:

$\}$

public static double add$($double a$,$ int b$)\{$

return a $+$ b $+1$;

$\}$

public static void main$($String$(]$ args$)\{$

double a $=4\mathrm{.}2$;

int b $=3$;

System.out.print$($add$($b$,$ a$))$;

$\}$

$8\mathrm{.}2$

$07\mathrm{.}2$

$9\mathrm{.}2$

$10\mathrm{.}2$