A security engineer at a software development company has identified several vulnerabilities in a
product late in the development cycle. This causes a huge delay for the release of the product.
Which of the following should the administrator do to prevent these issues from occurring in the
future?

A.
Recommend switching to an SDLC methodology and perform security testing during
eachmaintenance iteration

B.
Recommend switching to a spiral software development model and perform security testing
during the requirements gathering

C.
Recommend switching to a waterfall development methodology and perform security testing
during the testing phase

D.
Recommend switching to an agile development methodology and perform security testing
during iterations