Which of the following is the MOST likely test the third party has been engaged to perform?

A company has developed a SaaS product for the financial services industry. The Chief Executive Officer (CEO) of the SaaS company has engaged an independent third party to run tests against its platform.

Which of the following is the MOST likely test the third party has been engaged to perform?
A . Penetration testing
B . Load testing
C . Vulnerability testing
D . Functionality testing

Answer: A