What is a group of Reasons called?

A group of reasons is commonly called a Chain. Other collective nouns you may see include List and Paragraph.

Collective nouns for reasons refer to a group or collection of reasons that are categorized or identified together. Just like how a flock, a swarm, or a pack are collective nouns for birds, insects, or wolves, a collective noun for reasons captures the essence of multiple reasons being regarded as a single unit. This specific framework of nouns can be employed to emphasize the cumulative impact or relevance of multiple rationales behind a decision, action, or belief. These collective nouns are used when we wish to highlight that a multitude of compelling reasons support or justify a particular stance, approach, or conclusion. Individually, these reasons may carry weight, but when presented as a collective, they become even more powerful and persuasive. Engaging with collective nouns for reasons helps differentiate between a mere assortment of individual arguments and a united front, establishing a stronger and more cohesive foundation for a proposition. Consider an example where multiple reasons are provided to justify the construction of a new highway. The collective noun for reasons could be a "corroborating chorus," showcasing the harmonious interplay of arguments such as reducing traffic congestion, spurring economic growth, enhancing transportation efficiency, and promoting regional connectivity. The phrase "corroborating chorus of reasons" conjures a vivid image of a unified, supportive group of justifications working in tandem, creating a more persuasive and impactful statement. In summary, collective nouns for reasons serve to unite multiple arguments under a single, evocative label. These nouns play a pivotal role in framing and emphasizing the collective impact and strength of reasons, enabling more effective communication and encouraging thorough understanding and acceptance of complex propositions. Whether referring to reasons, rationales, justifications, or arguments, employing collective nouns allows us to showcase the power that arises from the unity of multiple distinct elements.