The table below shows the changes in the price of daily rail return tickets and the weekly quantity of daily bus tickets demanded between two seasons.
| Season | Price of daily rail return ticket | Weekly quantity of bus tickets demanded |
|---|---|---|
| Autumn | £6.00 | 12,000 |
| Winter | £7.50 | 15,600 |
Which option correctly describes the relationship between these two modes of transport and states their cross price elasticity of demand (XED)?
Complements, with a cross elasticity of demand of −0.83-0.83−0.83
Substitutes, with a cross elasticity of demand of +1.20+1.20+1.20
Complements, with a cross elasticity of demand of −1.20-1.20−1.20
Substitutes, with a cross elasticity of demand of +0.83+0.83+0.83