Python 2.7 multiple choice question

This is a MULTIPLE ANSWER question, which means you are able to select one or more answers as being correct. Note that this does not necessarily mean that there are multiple correct answers. In any case, select all the answers you believe are correct. There is a Python list of integers called rainfall. Which of the following blocks of code would find the average of the integers contained in rainfall? sum = 0 for amount in rainfall; sum = amount average = sum/len (rainfall) for amount in rainfall; sum = 0 sum = sum + amount average = sum/len (rainfall) sum = 0 for amount in rainfall; sum = amount average = sum/len (rainfall) sum = 0 for amount in rainfall; sum = sum + amount average = sum/len (rainfall) for amount in rainfall; sum = 0 sum = sum + amount average = sum/len (rainfall) sum = 0 for amount in rainfall sum = sum + amount average = sum/len (rainfall)