Geometry

Question Analysis  
This question focuses on the fundamental range of probability values.
The main goal is to recognize that probability must always satisfy .  

Key Concept Explanation  
: Impossible event (e.g., rolling a 7 on a standard die).  
: Certain event (e.g., rolling a number less than 7 on a standard die).  
Probability cannot be negative or greater than 1.  

Step-by-Step Solution  
(A) is valid (

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