That law states your options for responding to the USCIS's request for evidence. You may provide a full response, a partial response, or no response at all.
The statute reads as follows:
103.2(b)(11) Responding to a request for evidence or notice of intent to deny. In response to a request for evidence or a notice of intent to deny, and within the period afforded for a response, the applicant or petitioner may: submit a complete response containing all requested information at any time within the period afforded; submit a partial response and ask for a decision based on the record; or withdraw the application or petition. All requested materials must be submitted together at one time, along with the original USCIS request for evidence or notice of intent to deny. Submission of only some of the requested evidence will be considered a request for a decision on the record.
So, if you do not submit the evidence requested, then USCIS will make a decision based on the documents that they already have and if that information is found to be insufficient, your application may be denied.
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