________ is when a husband or wife kills a spouse who has involved himself/herself with another lover.

• A. Killing for Profit
• B. Anger Killing
• C. Revenge or Jealousy Killing
• D. Triangle Killing

Answer: (D)

Triangle Killing captures murders that arise within a love triangle—where one spouse kills the other because of involvement with a third person. The scenario fits this pattern: three people are involved (the husband or wife, the spouse, and the lover), and the killing stems from the dynamics of that triad, often tied to jealousy. This distinction is more precise here than labels tied to general anger or a profit motive, and it specifically highlights the triadic relationship as the driving context.