Your answer is C.) 6/11. Here is why if we look at all the numbers between 1-11 we find 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11. I bolded the odd numbers. There are 6 odd numbers and 5 even numbers. This means that the chance of choosing an odd number is 6/11. I hope this helped :)