When a licensed contractor is hired to do work, what procedure must the contractor follow to file a mechanics lien?

$($Place the sequence of events in the proper order.$)$

a written contract with the owner, a notice of completion, the start of work, a $20$day pre$-$lien notice

a written contract with the owner, the start of work, a $20-$day pre$-$lien notice, a notice of completion

notice of completion, $20-$day pre$-$lien notice, written contract with the owner, the start of work

$20-$day pre$-$lien notice, a notice of completion, the start of work, a written contract with the owner