正解:C
The correct way to handle this request and follow best practices is to use option C. Option C uses a SOQL query with a subquery to filter the Opportunities by record type and then iterate over the results. This way, the developer can avoid hardcoding the record type names or IDs, which can change in different environments or languages, and use the relationship name between Opportunity and RecordType to access the record type name. This also reduces the number of SOQL queries and the number of iterations, as the developer only queries the Opportunities that match the record type criteria and does not need to check the record type name in the loop. Option C also follows the best practices for writing SOQL queries, such as using bind variables, avoiding unnecessary fields, and using selective filters12. Reference: [SOQL and SOSL Queries], [SOQL Relationships], [SOQL Best Practices]