Which phrase indicates the reason for an action within a text?

The phrase "on account of" clearly indicates a reason for an action within a text. This phrase directly suggests a cause-and-effect relationship, meaning that something happens as a result of another fact or action. When you see "on account of" in a sentence, it is typically setting up an explanation for why something is occurring.

In contrast, phrases like "next" and "subsequently" are more focused on sequencing or timing rather than causation, indicating what follows in a sequence instead of providing a reason. The term "additionally" adds information or detail but does not imply a reason for an action. Therefore, "on account of" stands out as the phrase that explicitly communicates the cause or rationale behind an event in the text.