Final answer:
The two sentences that illustrate symptoms of stress in the given scenario are related to increased alcohol consumption, smoking, and experiencing violent nightmares in law enforcement professions.
Step-by-step explanation:
Two sentences that illustrate symptoms of stress among law enforcement, correctional, and public security workers, particularly in the scenario involving Federal Agent Penelope Ruiz, are: "Not only has she started drinking copious amounts of alcohol, but she’s also started smoking" and "She’s started having violent nightmares."
These behaviors are indicative of attempts to cope with high levels of stress and potential occupational burnout, which are common among professionals in high-stress jobs such as law enforcement.
The consumption of alcohol and the presence of nightmares is a direct manifestation of the psychological distress that these workers may experience. Additionally, symptoms such as insomnia and the inability to get a good night's sleep are further signs of the impact of stress on physical and mental health.
The references provided allude to the various aspects and impacts of stress, as well as the important role of physical fitness and mental health support in managing stress among individuals in high-stress professions. Federal Agent Ruiz's proactive steps towards visiting a counselor to work on her mental and physical health is a positive approach towards addressing the challenges she faces.