Geeta: Naresh has become a better boxer since he started meditation.

Radha: Impossible. A boxer’s most important asset is his aggressiveness.

Radha’s statement reflects her belief that

The correct option is "meditation tends to make a person less aggressive."

To understand why this is the correct option, let us analyze the dialogue step-by-step:

1. Geeta's Premise: Geeta claims that Naresh has become a better boxer since he started practicing meditation.
This suggests a positive correlation or causal link: Meditation ⇒ Better Boxer.

2. Radha's Objection: Radha rejects Geeta's claim immediately, calling it "Impossible." she supports this rejection by stating: "A boxer’s most important asset is his aggressiveness."
This establishes Radha's belief about boxing: More Aggressiveness ⇒ Better Boxer (or conversely, Less Aggressiveness ⇒ Worse Boxer).

3. Connecting the Logic: For Radha to claim that meditation cannot make Naresh a better boxer (because boxing requires aggressiveness), she must implicitly assume that meditation reduces aggressiveness. If meditation did not reduce aggressiveness, it would not conflict with a boxer's primary asset, and Radha would have no logical basis to call Geeta's statement "Impossible."

Therefore, Radha’s argument relies on the underlying assumption that meditation tends to make a person less aggressive, which directly contradicts what she believes is necessary to be a good boxer.