input: [S. No.] 4 In SDLC, actual testing is carried out in this phase. It includes unit testing, integration testing & system testing etc.. Test Execution and bug reporting, manual testing, automation testing is done, defects found are reported. Re-testing and regression testing is also done in this phase. But, I don't agree with this statement. So, if I want to relate the testing phase with STLC, I would say it it is testing of test cases & test plans i.e. is basically review of test cases, test scenarios etc.. [Phase] 
output: Testing
options: R e q u i r e m e n t s G a t h e r i n g
options: D e s i g n
options: C o d i n g o r d e v e l o p m e n t
options: T e s t i n g
options: D e p l o y m e n t
options: M a i n t e n a n c e