What should be the MAIN objective during development testing?

What should be the MAIN objective during development testing?
A . To cause as many failures as possible so that defects in the software are identified and can be fixed
B . To confirm that the system works as expected and that requirements have been met
C . To assess the quality of the software with no intention of fixing defects
D . To give information to stakeholders of the risk of releasing the system at a given time

Answer: A