What capability is highlighted as part of the growth in cyberspace?

The highlighted capability as part of the growth in cyberspace is information warfare capabilities. This concept reflects the increasing importance of information management and manipulation in modern military operations. In today’s digital age, the ability to conduct operations that protect, deny, exploit, or disrupt information systems has become critical. Information warfare encompasses tactics and strategies that utilize information technology to influence adversaries and protect one's own data and national security interests.

By emphasizing information warfare, the focus shifts to the necessity of securing networks, defending against cyber attacks, and utilizing information as a strategic asset. This underscores the evolving landscape of warfare where battles are as much about control of data and narratives as they are about physical confrontations.

Other options like heavy artillery, crisis response teams, and marine jet fighters represent traditional military capabilities or specific responses to crises, but they do not encapsulate the dynamic and expanding role that cyberspace and information warfare play in contemporary military strategy.