How do beta-blockers help manage anxiety?

Beta-blockers are specifically designed to block the effects of adrenaline, which is a hormone released during stressful situations. This action helps to mitigate the physical symptoms associated with anxiety, such as elevated heart rate, tremors, and sweating. By reducing these physiological responses, beta-blockers can help individuals feel more calm and manageable during anxiety-provoking situations, which makes option B the correct answer.

The other options don't accurately represent the primary function of beta-blockers in the context of anxiety management. For instance, while cognitive behavior therapy can be enhanced through various strategies, it is not the primary effect of beta-blockers. Similarly, beta-blockers do not inherently increase energy levels or serve directly as a self-care practice in the traditional sense. Their main role is centered around alleviating the physical symptoms of anxiety to support overall comfort and composure.