Which of the following actions is classified as first-degree murder - premeditated?

First-degree murder is specifically characterized by the element of premeditation, meaning that the individual has planned and intended to kill before actually committing the act. In this context, the action of intentionally causing another's death directly aligns with the legal definition of first-degree murder, as it denotes a conscious decision to end another person's life, indicating a high degree of culpability.

The other options do not involve the necessary premeditated intent to qualify as first-degree murder. Acts done in the heat of the moment usually fall under categories like manslaughter, where the individual did not have the time to plan or reflect on their actions. Unintentional killing during an altercation suggests a lack of intent to kill, which is not consistent with first-degree murder. Similarly, killing while committing a non-violent crime does not inherently involve the premeditated intention to kill, affecting the classification of the crime. Thus, intentionality and premeditation are key components that confirm the correctness of the second choice in relation to the definition of first-degree murder.