All emotions have certain definite_____________?OptionsAll of thesecharacteristicsDynamic lifestylephilosphy of the brain

To answer the question "All emotions have certain definite _____________?" let's analyze each option step by step:

1. Characteristics: Emotions indeed have certain definite characteristics. These characteristics can include physiological responses, facial expressions, and behavioral tendencies. For example, happiness might be characterized by smiling, a feeling of warmth, and a tendency to engage in social activities.

2. Dynamic lifestyle: This option does not seem to fit well. While emotions can influence one's lifestyle, they themselves are not described as having a "dynamic lifestyle."

3. Philosophy of the brain: This option is also not quite fitting. Emotions are more related to psychological and physiological processes rather than a "philosophy of the brain."

4. All of these: This option would only be correct if all the other options were correct, which they are not.

Given the analysis, the most appropriate answer is:

Characteristics

So, the complete sentence would be: "All emotions have certain definite characteristics."