Bipolar Disorder is characterized by which type of mood fluctuations?

Bipolar Disorder is characterized by extreme fluctuations in mood, which can manifest as episodes of mania or hypomania, where an individual may experience heightened energy, euphoria, or irritability, followed by episodes of depression, where they may feel profound sadness, hopelessness, or a lack of energy. This alternating pattern of extreme highs (mania or hypomania) and lows (depression) is a hallmark of the disorder, making it unique compared to other mental health conditions that may present with more stable mood patterns or different emotional responses.

While the other options describe feelings or behaviors that can occur in various mental health issues, they do not encapsulate the primary symptom of bipolar disorder, which is the cyclical nature of mood changes that can significantly impact daily functioning and quality of life. Thus, the correct answer draws attention to the essence of bipolar disorder's mood variability.