Final answer:
The probability of selecting a number that is not odd is c) 23/47.
Step-by-step explanation:
The probability of selecting a number that is not odd can be calculated by finding the proportion of even numbers to the total numbers. In this case, there are 23 even numbers (2, 4, 6, ..., 46) and 47 total numbers.
Therefore, the probability is 23/47.