Final answer:
The most relevant task after completing the FIRO-B assessment and reviewing the results is participating in a group discussion on the implications of the assessment.
Step-by-step explanation:
After completing the FIRO-B assessment and reviewing the results, the most relevant task would be participating in a group discussion on the implications of the assessment. This task allows individuals to share their insights, discuss the implications of the assessment results, and gain a deeper understanding of how the assessment relates to interpersonal dynamics. It also provides an opportunity for individuals to learn from others' perspectives and broaden their knowledge on the subject.