Our friend Matt Labb wants to write a user$-$defined function $.$m file called CalculateCircle which accepts the radius of a circle $($radius$)$ and returns the circle's circumference $($C$)$ and area $($A$).$ What is the correct function header?

Our friend Matt Labb wants to write a user$-$defined function $.$m file called CalculateCircle which accepts the radius of a circle $($radius$)$ and returns the circle's circumference $($C$)$ and area $($A$).$ What is the correct function header?

function $[$radius$]=$ CalculateCircle$[$C$,$A$]$

function $[$C$,$A$]=$ CalculateCircle$($radius$)$

function CalculateCircle$($radius$)=[$C$,$A$]$

function CalculateCircle$($radius$)$

Question at position $2$

$2$

$1$ point