This is a tricky one, but I'd go with A and D. The data type and field type are crucial for ensuring data validity. I'm not sure why local sourcing would be a requirement, so I'd skip that option.
I think B and D are the way to go. The data needs to fit the business logic, and the field types need to be correct. Organizing the data in a data type is important, but I'm not sure if that's a strict requirement here.
Option A and D seem like the correct choices to ensure valid data for the case. The data needs to be organized in the right data type, and the field types need to match the requirements.
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