The record will not save and the validation rule's error message will be displayed because the field update will violate the validation rule. The validation rule will prevent the record from being saved if the Industry field is longer than 6 characters, and Technology is 10 characters long.

Explanation
The app builder should create a sharing rule that grants the users Read/Write access to the Application records.
A sharing rule is a type of rule that can extend record access to groups of users based on certain criteria. In this case, the app builder can create a sharing rule that grants Read/Write access to the Application object to the recruiters based on their role, public group, or queue. This will allow them to edit the Application records related to any Internship record, regardless of the ownership. Option A, B, and C are not ways to configure the proper access.