Identify the correctly matched pair(s) from the following based on the unit of measurement used for the estimation of different items of work.
1. Stone slab in roof: square metres
2. Cutting of trees: tonnes
3. Lime concrete in foundation: cubic metres
1
1, 2 and 3
2
Only 2 and 3
3
Only 1 and 2
4
Only 1 and 3