What are the ways a developer can create test data of Contacts? (Choose two.)

What are the ways a developer can create test data of Contacts? (Choose two.)
A . Test.createTestData ()
B . myDataFactory.createContacts(10)
C . Test.loadData(Contact.sObjectType, ‘staticResource’)
D . Test.loadTestRecords(Contact.sObjectType, ‘staticResource’)

Answer: B,C