The best way to help the sales manager achieve their goal of reducing manual data entry from business cards is to research and evaluate data enrichment products on the AppExchange that can automate data entry. Data enrichment products can scan business cards, extract relevant information, and populate fields in Salesforce records. This can save time, improve data quality, and enhance productivity. Option B, C, and D are not effective solutions for this goal.

Explanation

Explanation
The Owner field on the Master record determines the ownership and sharing access of the detail record in a master-detail relationship. According to the Salesforce documentation, "The detail record inherits the sharing and security settings of its master record." The default owner is not set in the parent object's settings, the Owner field on the Detail record does not exist, and the owner is not set independently on the detail object's settings.

The app builder should create a new roll-up summary field called First Order Date, using Type MIN on the Opportunity Close Date with a filter where IsWon = TRUE. A roll-up summary field is a type of field that calculates values from related records and displays them on the parent record. In this case, the app builder can create a roll-up summary field on the Account object that calculates the minimum (earliest) value of the Opportunity Close Date field from the related opportunities where IsWon = TRUE. This will show when customers made their first purchase. Option B, C, and D are not correct ways to use a roll-up summary field to meet the requirement.

Roll-up summary fields can only be created on master-detail relationships, and they can only calculate numeric fields, such as currency, percent, and number. Date and time fields are not supported for roll-up summary fields. Checkbox fields can be used in roll-up summary filters, but not in the field to aggregate