Final answer:
The true statement about conspiracy is that it generally requires an agreement between two or more persons to commit a felony and at least one overt act towards its completion.
Step-by-step explanation:
The question asks for a clarification on the nature of conspiracy and its relation to committing a felony. The provided information primarily deals with treason, which involves levying war against the United States or aiding its enemies, and the conviction criteria for treason. However, this information is not directly relevant to conspiracy. Conspiracy in a legal context usually requires an agreement between two or more persons to commit a felony and an overt act towards its completion. So, to answer the question, true or false: Mere agreement by two or more persons to commit a felony constitutes conspiracy? The answer is true—however, most jurisdictions also require at least one overt act in furtherance of the conspiracy.