Assuming $x$ is $5,y$ is $6,$ and $z$ is $8,$ which of the following is false?

$x==5$;

$7(x+2)$;

$z4$ i

$(1+x)y$;

$z8$;

$x{0}_{{?}_{?}}$

$x(y**2)$

a$.3,4,6,7$ are False

b$.$ Only $5$ is False

c$.3$ and $4$ are False

d$.$ All are False

e$.$ None of these

A function can have zero to many parameters, and it can return this many values.

a$.$ zero to many

b$.$ No

c$.$ only one

d$.$ a maximum of ten

e$.$ None of these

Given the following function definition

void calc $($int a$,$ int& b$)$

$\{$

int c;

c$=$a$+2$;

b $=$ c$+$ a;

$\})$