Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean asphalt shingles [title] Protect yourself. [step] To stay safe, wear slip-resistant shoes. Wear safety goggles to protect your eyes.

Ending1: Also wear respiratory gear, such as wrist pads, protective clothing, a facemask, gloves, goggles, and rain goggles. [substeps] During the day, wear long sleeves over your body to protect yourself from the sun. Ending2: [title] Apply a regular primer that protects any roof surface from abrasions. [step] Look for a primer that is labeled as " glass or manufactured latex primer, " or " polymerase based primer. Ending3: Attach yourself to the chimney or another secure point using a safety rope, if necessary. Wear long sleeves and pants to avoid getting the cleaning agent on your skin. Ending4: Also wear proper protective equipment at all times, such as gloves. [substeps] Put on safety equipment if you live in an area with gravel.

Answer format: ending1/ending2/ending3/ending4