Question $33$ of $40$

What will this code output?

items$1=[1,2,3,4]$

items$2=\{\text{'}$a$\text{'}$:$1,\text{'}$b$\text{'}$:$2,\text{'}$c$\text{'}$:$3,\text{'}$d$\text{'}$:$4\}$

print$($items$1[2]+$items$2[\text{'}$c$\text{'}])$

$4$

$6$

$5$