Final answer:
Admiral Samuel Locklear's statement on climate change likely uses c) ethos (credibility) due to his authoritative position, and pathos (emotion), given the seriousness of the term 'greatest security threat' and potential consequences like natural disasters. B) Logos (logic) may also be present if he provided factual evidence to support his claim.
Step-by-step explanation:
In the statement by Admiral Samuel Locklear that climate change is 'our single greatest security threat', he most likely employs elements of ethos (credibility), given his position as the chief of the US Navy's Pacific command. Such a high-ranking official would convey a sense of authority and expertise, thus appealing to the audience's trust in his judgment. Additionally, there may be an element of pathos (emotion) involved due to the high stakes and sense of urgency that the term 'single greatest security threat' evokes, as it is designed to elicit an emotional response and recognize the potential dangers associated with climate change.
The usage of pathos is further underlined by the mention of the severe consequences of climate change observed worldwide, such as bushfires, floods, and heat waves, which can resonate with shared feelings and concerns about public health and social stability. While not explicitly stated in the provided context, it is also possible that Locklear's statement included logos (logical appeal), especially if he supplemented his claim with facts, statistics, and scientific predictions related to the security implications of climate change. If he were to present factual evidence, this would strengthen his argument's logical appeal.