Question 15 (1 point) Read the code shown below carefully and pick out only the keys. {' john': 40, 'peter': 45} john, peter, 40, 45 john, peter" 40, 45 Question 4 (1 point) State True or False: In Python 3, the maximum value for an integer is 263 - 1. True False Previous Page Next Page Page 4 of 15 Question 9 (1 point) Saved What will be the output of the following code? >>> a = (-1, 1, 66. 25, 333, 333, 1234.5] >> del a[-1] >>>> print(a[-1]) 333 1234.5 ValueError: '-1' is not in list -1 Question 9 (1 point) Consider a list 'my_list' with 'n' elements. What does my_list.pop(0) do? Returns the item with value 'O' from my_list. Returns the last element of my_list Returns the first element of my_list Error