<span> . . a <em>tenet</em> is . .<u><em> a main principle/belief, usually religious or philosophical</em></u></span>
. . thus . . main principle/belief of the New Jersey Plan was . . <u><em>to offer the idea of a single-house legislature in which each state would have an equal number of votes</em></u> . . giving smaller states an equivalent voice of power within the government compared to larger states
3 is the answer to the question
When unions were first organized, union leaders were in competition with one another in order to get the most active labor members, but they soon realized that this was a failing tactic and often united into single groups.
The answer is Physiological