Answer down below:
There were originally 12 muffins in total, and Audrey’s mother ate one, resulting in 11 muffins now.
Aubrey wants a blueberry muffin, and since her mother didn’t east a blueberry muffin, there are still 4 muffins in total.
To get the probability, you need to divide how many of something there is divided by the total of things.
In this case, its 4 muffins divided by 11 muffins in total.
Therefore, your answer is B: 4/11