Clarification on 'Period of Inactivity' in Microsoft's Malware Submission Form and its Implications

Regarding this form: https://www.microsoft.com/en-us/wdsi/filesubmission?persona=SoftwareDeveloper

There's this question

Should this file be removed from our database at a certain date?

• No — remove the file automatically after a period of inactivity
• Yes — remove the file on:

May I know:

1. When this file is removed from the database, will Microsoft security products now stop recognizing the file?
2. What is being referred to by "a period of inactivity"? Is it the period referring to the length of time between each submission by the user?
3. How long is this period?

Thank you