$85\mathrm{.}1\%$ complete

Question

A cyber security specialist has concerns about the potential of advanced persistent threats $($APTs$)$ to the organization. Which aspect of APTs should the cyber security specialist be most concerned with?

A$.$APTs are interested in maintaining access to networks.

B$.$APTs are typically executed by lone attackers using publicly available exploits.

C$.$APTs spend little time gathering intelligence on their targets.

D$.$APTs have limited financial and personnel resources.