Based on the SAP Activate methodology, which of the following tests are formal, and therefore must be documented during implementation? (Choose two.)

Based on the SAP Activate methodology, which of the following tests are formal, and therefore must be documented during implementation? (Choose two.)
A . String test
B . Integration test
C . Unit test
D . Business process test

Answer: A,B

Explanation:

Reference: https://s3-eu-west-1.amazonaws.com/gxmedia.galileo-press.de/leseproben/5027/reading_sample_sappress_sap_activate.pdf