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
A roll-up summary field is a field that calculates values from related records. A roll-up summary field can be used to display the number of opportunities that are closed won with a close date within the last year on the account detail page by using a filter criteria on the field.

Explanation
Workflow rule and an outbound message or Process Builder and Apex Code are two ways to integrate Salesforce with an external web service. Workflow rule can define criteria and actions for triggering an outbound message, which is an XML message sent to a designated endpoint URL. Process Builder can invoke Apex Code, which is a programming language that can make callouts to external web services using HTTP requests. Flow Builder and an outbound message or Process Builder and an outbound message are not possible combinations.

The app builder needs to have NOT(ISBLANK([Lead].OwnerId)) in the criteria to ensure the process runs without error. This formula checks if the OwnerId field on the Lead object is not blank, which means that the lead is owned by a user or a queue. This will prevent the process from running on leads that are not owned by anyone, which could cause an error. Option A, B, and C are not formulas that can ensure the process runs without error.