Mega Root CA Mega Ops CA Mega M&A CA Micro Root CA Ops Employees M&A Employees Micro Employees Suppose MegaCorp buys MicroCorp to become GigaCorp. Before GigaCorp becomes operational, MicroCorp employees must be able to submit reports to MegaCorp's merger and acquisition (M&A) department. There is no need for MicroCorp employees to contact anyone in other MegaCorp divisions. For the trust topology of MegaCorp and MicroCorp shown, select the cross-domain certificate that allows MicroCorp employees to communicate with MegaCorp's M&A employees and no others in MegaCorp. OK[Micro Root CA] says (K[ MA] => MA) OK[Micro Root CA] says (K[Mega Root C] => Mega Root CA) K[Mega M&A CA] says (K[Micro Root CA] => Micro Root CA)