Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to measure diameter at breast height (dbh ) [title] Measure 4.5 ft (1.3 m) above the ground. [step] Use yourself as a human measuring stick by locating this point on your body before entering the field. If the tree is on a slope, measure from the highest point of the ground.

Ending1: [substeps] If you are going forward, you need to measure from a point where your legs will touch, while if you are going south, measure from a point where you will go north. You can make the difference between distances by picking up the measuring stick and taking it to the ground. Ending2: If the tree is on a hill or a flat area, measure from that. [substeps] If you are measuring across a field, measure from the top of the field's slope to the highest point of the hill. Ending3: Measure from the top of a hill to the second highest point of the slope. This second peak will be known as the final pole. Ending4: [title] Wrap your diameter tape around the tree's trunk at the determined height. [step] Most tapes have a hook attached that you can use to anchor the end of the tape if the trunk is too big to wrap your arms around.

Answer format: ending1/ending2/ending3/ending4