What characterizes "effusive" emotions?

"Effusive" emotions are characterized by overflowing and emotionally excessive expressions of feelings. This term is often used to describe a way of expressing emotions that is unrestrained and exuberant. Individuals displaying effusive emotions may show their feelings in a very demonstrative manner, expressing warmth and enthusiasm that can seem almost overwhelming or overly excessive.

The other choices do not encapsulate the essence of effusiveness. For instance, restrained and calculated feelings, along with a calm and collected demeanor, suggest a measured and controlled emotional expression, which is the opposite of what "effusive" indicates. Similarly, while expressions of anger and frustration can be intense, they do not necessarily encompass the warmth or positivity often associated with being effusive; rather, they are more specific and negative emotional states. Recognizing that effusiveness relates to an abundance and outpouring of positive feelings helps clarify why the correct answer focuses on expressions that are emotionally excessive.