Final answer:
The correct answer is 'D. installation commanders,' who are responsible for setting local policy on the use of telephones during Initial Entry Training in a military context.
Step-by-step explanation:
The use of telephone during Initial Entry Training (IET), including cellular and other wireless communication devices, is indeed a privilege rather than a right. The question refers to who is responsible for establishing local policy regarding this privilege. The correct answer is installation commanders. In a military context, installation commanders are typically in charge of the overall operation of a military base or installation, which includes managing the welfare and discipline of personnel undergoing training such as IET. Therefore, installation commanders would be the ones to establish policies on the use of telephones.
The use of telephone during IET, including cellular and other wireless communication devices, is a privilege that is regulated by the local policies set by IET commanders. These policies vary depending on the location and can be established by brigades, garrisons, or installations. For example, a brigade commander may establish a policy restricting phone usage during certain training exercises, while an installation commander may have a different set of rules.