Final answer:
The terms 'Nay' and 'Army GPMs' seem to be incorrectly stated or context-specific abbreviations. In a military context, 'Nay' might refer to naval forces, and 'Army GPM' likely stands for general purpose machine guns used by the army. More context is needed for a precise answer.
Step-by-step explanation:
The terms 'Nay' and 'Army GPMs' do not have widely recognized equivalents and the question seems to contain a typographical error or is using abbreviations specific to a context not provided. However, if by 'Nay' the student is referring to naval forces and by 'Army GPM' to general purpose machine guns used by the army, then an explanation of each can be given within Military Science, a subset of Social Studies. GPM stands for General Purpose Machine Gun. This term refers to a type of machine gun that is designed to be used in a variety of roles. On one hand, 'Navy GPMs' would imply machine guns that are utilized by naval forces.
An example is the M240 machine gun which is used by both the U.S. Navy and the Army. On the other hand, 'Army GPMs' refers to machine guns used by land military forces, like the M60 machine gun. In order to provide a correct and direct answer, more context is required. It is important to clarify the abbreviations used in the original question to provide a precise answer. If the question pertains to the military context, then the student would be advised to specify the models or terminology being compared. If the question involves different subject matter, clarification would likewise be needed.