Final answer:
Trait Theory (Option A) is the leadership theory that suggests leaders are born with intrinsic qualities that predispose them to be effective leaders.
Step-by-step explanation:
The leadership theory which focuses on the belief that leaders are born with inherent qualities that make them effective leaders is known as Trait Theory (Option A). This theory posits that certain biological, psychological, and social traits are native to individuals and predetermine their effectiveness as leaders. The Trait Theory is contrasted with other theories such as Transformational Leadership, which emphasizes charismatic and visionary leadership, or Situational Theory, which suggests that effective leadership is contingent upon situational factors.