bSet $=$ set$(\text{'}$Lyons$\text{'})$

Answer the following questions $($Although sets are unordered, write the elements in alphabetical order starting with upper$-$case to the lower$-$case elements. USE SINGLE QUOTE FOR STRINGS$)$ :

a$.$ What are the elements of bSet?

$($use a set notation and use spaces as appropriate$)$

b$.$ What is the output of print$($aSet$.$symmetric $\_$difference$($bSet$))?$

c$.$ What is the statement to display the elements common to the two sets?