The houses of A and B face each other on a road going north-south, A's being on the western side. A comes out of his house, turns left, travels 5 km, turns right, travels 5 km to the front of D's house. B does exactly the same and reaches the front of C's house. In this context, which one of the following statements is correct ?
1
C and D live on the same street.
2
C's house faces south.
3
The houses of C and D are less than 20 km apart.
4
None of the above