Select the option that can be used as a one-word substitute for the given group of words.

A seat for a passenger on a bicycle or motorbike

Pillion

The correct option is pillion. It is a seat for a passenger on a bicycle or motorbike. The other options are not correct substitutes.

• Girdle is a belt or band worn around the waist.
• Bridle is a harness used to control a horse.
• Cushion is a soft, padded object used to sit on.