Geometry

Question Analysis  
This question tests understanding of mutual exclusivity when one event is a subset of another.  

Key Concept Explanation  
Mutually Exclusive: Two events cannot occur together.  
Here, rolling a 3 is part of the "odd number" set (1, 3, 5), so they overlap.  

Step-by-Step Solution  
1. Odd numbers on a die: 1, 3, 5.  
2. Rolling a 3 is both "3" and "odd."  
3. Thus, the events are not mutually exclusive.  

Option Analysis  
A: Incorrect (3 is odd, so ...