PPD-21 recommends critical infrastructure owners and operators contribute to national critical infrastructure security and resilience efforts through a range of activities, including all of the following EXCEPT: A. Establish continuity plans and programs that facilitate the performance of lifeline functions during an incident
B. Sponsor critical infrastructure security and resilience-related research and development, demonstration projects, and pilot programs
C. Develop and coordinate emergency response plans with appropriate Federal and SLTT government authorities
D. Perform critical infrastructure risk assessments; understand dependencies and interdependencies; and develop emergency response plans

B. Sponsor critical infrastructure security and resilience-related research and development, demonstration projects, and pilot programs

Explanation:

The PPD-21 known as the Presidential Directive on Critical Infrastructure Security and Resilience is set up to advance national unity with an effort to stregthen and maintain secure and reisilient critical infrastructure.

To sponsor critical infrastructure security and resilience-related research and development, demonstration projects, and pilot programs is not part of what the PPD-21 is set up to achieve. Rather it is developed and implemented to:

• Perform critical infrastructure risk assessments; understanding dependencies and interdependencies;

• Developing and coordinating emergency response plans with appropriate Federal and SLTT government authorities;

• Establishing continuity plans and programs that facilitate the performance of lifeline functions during an incident;

answer: what do you mean

explanation:

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huns attack the empire and drive german peoples ahead of them.