Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to remove tree stumps [title] Dig around the roots. [step] Use a shovel to dig next to the stump, exposing the roots underneath the surrounding dirt. Move around the circumference of the stump and continue digging until you've exposed all of the largest roots around the tree.

Ending1: [substeps] When you dig, press lightly on the bark with your fingers to force the soil deeper. If possible, work away from the tree so that you don't dig deeper into its roots. Ending2: [substeps] When you dig the stump apart, look for the root mass of the tree, as tree stumps have three swollen root masses that are produced by roots. If you know the tree root mass, locate it if you've missed the root mass. Ending3: [substeps] Dig around each of the roots to expose them. [title] Determine whether the tree is still viable. Ending4: Dig deep on either side of the roots to expose them as much as possible. [substeps] If the roots seem very large and deep, and it's difficult to completely uncover them, you might want to consider a different root removal method.

Answer format: ending1/ending2/ending3/ending4