Correct Answer:
A. rope or chain
Tether means a rope or chain that restrains an animal.
- Correct answer - rope or chain: it has the same meaning as Tether.
- crow-bar: an iron bar for prising things open - wrong, it does not mean the same as Tether.
- pulley: a wheel used to lift loads - wrong, it does not mean the same as Tether.
- rubber ball: a bouncing toy ball - wrong, it does not mean the same as Tether.