Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to drive in the mud [title] Check the depth of the mud. [step] Before you hit a muddy stretch of road, if it looks deep at all, hop out of your vehicle and take a closer look. Get a stick and test the depth of the mud by sinking it in.

Ending1: Keep the stick, pole, block, or tarp under the mud to prevent it from clumping up. [substeps] Don't attempt to drive until the mud is just barely moist or you are relaxed. Ending2: Alternately, use a pole or a compass to look at the gravel or mud and experiment with the position of the stick, pole or compass your car is in. The results will be more pronounced if your car is in a deep mud, and with a bigger, deeper mud then you might not be able to see the results. Ending3: Try to spot any objects hidden in the mud, such as large rocks, which could damage the underside of your vehicle. [substeps] Expect that you will get a bit dirty checking out the road, but it could save you lots of time and hassle in the long run. Ending4: If it sinks into the dirt at all, it is not safe to drive in mud. The best time to check mud depth is shortly before you are about to drive off.

Answer format: ending1/ending2/ending3/ending4