Auditors, accountants, and bankers were all held liable in the case where the Dixon Treasurer was accused of stealing $$54$ million from the city for personal finances. What were the factors argued in the civil suit that indicated culpability on the part of these outside parties? select all the answers that applies.

$1.$ The bank for accepting checks that were simply made out to Treasurer and for letting the client setup a supposed city account without the proper documentation.

$2.$ The tax accountant reporting income without questioning the source.

$3.$ All parties for not noticing the suspicious behavior of the Treasurer.

$4.$ The auditors not noticing misspellings on invoices or the fact that they were not on state letterhead.