Final answer:
The plot point described in the passage where Leah is deciding between becoming an actor in New York City or a cowgirl in South Dakota, and then boards a flight to the West, is the climax of the story.
Step-by-step explanation:
In the passage provided, the plot point being described is the climax. This is the moment when the protagonist, Leah, is faced with a critical decision that will significantly affect the outcome of the story: whether to live in New York City as an actor or to become a cowgirl on a ranch in South Dakota. As Leah boards a flight to the West, it signifies her making a choice, which represents the peak of the narrative's action and the central event where the conflict comes to a head. The climax is often referred to as the turning point of a story, and it is the incident that allows the main conflict of the story to resolve, leading to the resolution of the plot. In this case, Leah's choice will lead to falling action and ultimately the resolution.