which code segment should you replace line EQ64?

The GetExternalOrder() method in the ExternalQueueService service is throwing a runtime error. The method
must query the database for a record that matches the orderNum parameter passed to the method.
You need to modify the queryString string to retrieve the record. With which code segment should you replace
line EQ64?

A.
Option A

B.
Option B

C.
Option C

D.
Option D