Which of the following errors does the code snippet below clearly have?
*****Other code is here******
numbers=[1,9,10,4]
sum=0
for number in numbers:
sum+=number
print("The sum of the numbers is "+str(sum))
print("The last number is "+str(numbers[4]))
*****Other code here******
IndentationError: expected an indented block
IndexError: list index out of range
SyntaxError: invalid syntax
TypeError: can only concatenate str (not "int") to str