To answer this question, we need to understand the context of the given names "Arulmozhi Varman" and "Vaanadhi".
In the historical novel "Ponniyin Selvan" written by Kalki Krishnamurthy, Arulmozhi Varman is the protagonist and Vaanadhi is a character in the story.
In their first meeting, Arulmozhi Varman helps Vaanadhi in saving a sparrow and its nest.
Option A) Spoke with Vaanadhi - This option is incorrect because Arulmozhi Varman did more than just speaking with Vaanadhi in their first meeting.
Option B) Married Vaanadhi - This option is incorrect because there is no mention of marriage in their first meeting.
Option C) Helped her in saving the sparrow and its nest - This option is correct because Arulmozhi Varman did help Vaanadhi in saving the sparrow and its nest.
Option D) Saved her from the river - This option is incorrect because there is no mention of Arulmozhi Varman saving Vaanadhi from the river in their first meeting.
The correct answer is C) Helped her in saving the sparrow and its nest. This option is correct because Arulmozhi Varman did help Vaanadhi in saving the sparrow and its nest in their first meeting.