Select the function definition that does not follow the lab instructions below:

Define a function named CoinFlip that returns "Heads" or "Tails" according to a random value $1$ or $0.$ Assume the value $1$ represents "Heads" and $0$ represents "Tails".

Group of answer choices

string CoinFlip$($void$)$

$\{$

if $($rand$()\%2==1)\{$

return "Heads";

$\}$

else $\{$

return "Tails";

$\}$

$\}$

string CoinFlip$($void$)$

$\{$

string answer;

if $($rand$()\%2==1)\{$

answer $=$ "Heads";

$\}$

else $\{$

answer $=$ "Tails";

$\}$

return answer;

$\}$

void CoinFlip$($void$)$

$\{$

if $($rand$()\%2==1)\{$

cout $<<$ "Heads";

$\}$

else $\{$

cout $<<$ "Tails";

$\}$

$\}$

string CoinFlip$($void$)$

$\{$

return $($rand$()\%2==1)?$ "Heads" : "Tails";

$\}$