Final answer:
The correct answer is option A. Transformational leadership. This leadership style involves charismatic role models who inspire and motivate their team members to achieve their full potential.
Step-by-step explanation:
The type of leadership displayed by an enthusiastic team leader who conveys positive feedback about team projects and creates a supportive environment would most closely align with transformational leadership. Transformational leaders are known for their charisma, inspiration, intellectual stimulation, and consideration for individuals. These leaders strive not just to maintain the status quo but to inspire their teams to surpass it, fostering a positive and collaborative team atmosphere.
In the given scenario, because the leader's approach results in the entire team feeling good about working together, it indicates the presence of these transformational attributes, particularly being inspirational and considerate, contributing to a positive team environment.