$1.$ After execution of Scheme code $($define L $((12)3(4(56)7))),$ what would each of the following return:

a$)($car L$)$

b$)($cdr L$)$

c$)($cons $(12)$ L$)$

d$)($cons $($car $($cdr L$))($cons $($car L$)()))$

e$)($cdaddr L$)$