Answer the following the questions based on the code snippet below:

void loop$()\{$

$//$ Set motor A speed and direction

analogWrite $($enA$,150)$; $//$ Speed control $(0-255)$

digitalWrite $($inl$,$ HIGH$)$ ;

digitalWrite $($in$2,$ LOW$)$ ;

$//$ Set motor B speed and direction

analogWrite $($enB$,150)$; $//$ Speed control $(0-255)$

digitalWrite $($in$3,$ HIGH$)$ ;

digitalWrite $($in$4,$ LOW$)$ ;

$\}$

a$)$ Create a variable called motorSpeed that will store the speed of the dc motors. Rewrite the code above so that the variable is substituted for the value $150$ and the motors are spinning in the opposite directions.

b$)$ Create a second variable motorSpeed$2.$ Using motorSpeed and motorSpeed$2,$ modify the code so that the motor B spinning at twice the speed of motor A in the same direction.