Final answer:
Option (a) High survivability represents the proactive approach necessary in an emergency rescue situation with known victims in danger where the conditions are favorable for a potentially successful rescue effort.
Step-by-step explanation:
The question seems to be related to emergency response or situational triage typically faced by first responders or medical professionals. When known victims are in danger and conditions are favorable for a rescue effort that can potentially save them, the correct approach would be to actively engage in the rescue operation. A triage situation like this calls for assessing victim survivability and making decisions quickly to save as many lives as possible.
In this context, the most appropriate response would seem to be option (a) High survivability, meaning that rescuers would prioritize individuals who have a high chance of surviving with immediate action. The option to decrease, ignore, or minimize would not align with a proactive rescue approach when there is a good possibility of saving lives.