Red$-$team assessments are described in which manner? Group of answer choices a$.$ Red$-$team assessments do not focus on the specific vulnerabilities found, but simply if a system can be compromised. b$.$ Red$-$team assessments test common security goals of the client. c$.$ Red$-$team assessments are conducted with the cooperation of a blue team. d$.$ Red$-$team assessments are conducted by the client determining the method of attack.