Study Figure 2, which shows data for various coastal defense strategies.
| Coastal Method | Setup cost per metre | Annual maintenance cost per metre |
|---|---|---|
| Hard engineering | ||
| Gabions | £250 | £30 |
| Wooden Groynes | £1,100 | £80 |
| Soft engineering | ||
| Dune regeneration | £150 | £20 |
| Managed retreat | £350 | £5 |
Which coastal management method has the highest setup cost per metre?
Gabions
Wooden Groynes
Dune regeneration
Managed retreat
