Hi there! It's b hope this helps!
There are 0 because the others flew away
1 sum
because of the commutative property of addition
a+b=b+a
we can furthuer expand it
a+b+c=a+c+b=b+a+c=b+c+a=c+b+a=c+a+b
same sum
you can test it with numbers
for a power of ten all you need is just add a zero, example, 10 to the power of 10 just add ten zeros behind the 10 -------> 100,000,000,000
There are 5 possible outcomes
