Do any of the following sets have the completeness property:

1. Q

2. closed interval from 0 to 1

3. open interval from 0 to 1

4. 0 to 1 including 0 but not 1

5. 0 to infinity including 0

I dont think number 1 does because you could have the set of rationals where the sqaure of the element in the set is less than two. This has upper bounds but does not have a least upper bound