Question 1B A report is being created to help identify duplicate vendors. The duplicate names might not be adjacent. Which customization should be done to the vendor contact list to help identification? 1. Group by phone; add column for zip; sort by zip 2. Group by phone, add column for phone; sort by zip 3. Group by city; add column for last name; sort by full name 4. Group by zip; add column for phone; sort by phone number