Topic: Substitution, Expression, & Definition,

Best Answer Explained in Below-:

The term "genocide" is derived from the Greek word "genos," meaning "family" or "race," and the Latin word "caedere," meaning "to kill." It specifically refers to the deliberate and systematic destruction of a particular ethnic, racial, national, or religious group. The key aspect of genocide is the intent to eliminate individuals based on their identity, which distinguishes it from other forms of mass violence or killing that may not have a targeted group focus.

Option C, "Mass killing," accurately captures the essence of genocide, as it involves the coordinated and intentional actions taken to kill significant numbers of individuals belonging to the identified group. This is distinctly different from the other options. Option A, "Mass grave," refers to a burial site that may result from genocide but does not define the act itself; Option B, "Mass gathering," and Option D, "Mass attendance," imply the coming together of people without any connotation of violence or killing. Thus, C is the correct answer, as it encapsulates the brutal reality of genocide and highlights its focus on targeted mass killings.