The best answer is D because the scenario explicitly centers on limited time for examination. CHFI v11 teaches that the choice of acquisition method depends on practical investigative constraints, including the nature of the evidence, volatility, legal scope, and the time available to perform extraction. Here, the dominant operational factor is that investigators cannot spend long periods examining the devices at the scene. That means the acquisition approach must be chosen primarily with time constraints in mind, possibly favoring targeted or faster collection options over slower, more exhaustive methods. Required live data could also influence the method in some cases, but the question does not emphasize volatile memory or active-system state as the main issue. Recovery of deleted data is a goal that may matter later, and available tools are always relevant, but neither is the direct constraint highlighted by the scenario. In CHFI-style reasoning, when the examination setting itself limits how long responders can work, the most immediate deciding factor for acquisition strategy is the time available for extraction. Therefore, time constraints should most directly guide the method selection.