Using "If Condition/Statement" with two forms

Using "If Condition/Statement" with two forms

Form A: Used to select email notification preferences (Multi-Select Field)

Form B: Used to add and manage work orders

SCENARIO
First, the user submits Form A, setting their notification preferences. Then, the user submits Form B to create a work order and manage via status updates.

ISSUE
When Form B is submitted, we need an email notification to be sent "IF the checkbox in Form A is checked".

How do I reference Form A in the deluge script so that we can have the email sent IF the box is checked?
The checkbox in Form A is a "multi-select", how do I target specific selections within that list?

Thanks for your help! I've made huge progress with my application over the last week and the help I've received here is a big reason for it. Thanks again! Chris