Final answer:
The statement implies that "Jointness," the collaboration and integration of different military branches, requires continuous effort and is not inherently present; hence, joint force development is an evolving process aimed at improving operational effectiveness.
Step-by-step explanation:
The statement that the concept of "Jointness" must be advanced through continual joint force development efforts implies that the integration and coordination among different military branches (i.e., army, navy, air force) does not occur naturally or exist automatically. Instead, it requires ongoing development and refinement.
Therefore the correct answer to the question would be B. "Jointness" is not an automatic service state of being. This concept stresses that joint force development is a continuous process that involves the integration and synchronization of military services to enhance their effectiveness in operations. It reflects an understanding that military forces must work together seamlessly to achieve strategic objectives.