Which of the Following Probabilities Would Be Best Determined by Using

Which of the following probabilities would be best determined by using the method of equal alternatives?

A) the odds that a certain competitor will win the gold medal at the Olympics
B) the odds that a banana will have brown spots 24 hours from now
C) the odds that the next business to open in a certain town will be a grocery store
D) the odds that a certain monkey can be housebroken
E) the odds that a letter randomly chosen from the English alphabet will be a vowel