Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to protect toddlers against mosquitoes [title] Apply mosquito repellent. [step] For young children between the ages of two months and three years, choose a repellent with deet. Be careful that the product does not touch your toddler's face or hands.

Ending1: First put the spray on your hands and then rub it on your child, or try a cream-based repellent. You do not need to use a large amount. Ending2: Some repellents are too strong and your toddler could suffer burns or a skin pst infection. When applying your repellent, try a child's repellent that emphasizes the deet effect, and not be too strong. Ending3: Deet can raise skin irritations, which may be dangerous for your toddler and more than unhealthy for your child. [substeps] Deet can be purchased at most drug stores. Ending4: It can also be contaminated, which this extra water could potentially cause. [substeps] You can buy mosquito repellents containing deet at most department and grocery stores, and/or some online retailers or pharmacies.

Answer format: ending1/ending2/ending3/ending4