Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to straighten thick hair [title] Wash and condition your hair. [step] Straightening works best when you start with clean, well-nourished hair. Wash with a gentle shampoo to avoid stripping your hair before you use heat on it and make it more prone to damage.

Ending1: If you have fine hair, you don't have to shampoo it, just wash it until it feels good and soft. If your hair tends to be greasy, apply some conditioner or honey to it and gently brush out any knots. Ending2: [title] Condition with a matte, coconut oil. [step] Coconut oil helps the curls to stay tight and may not provide the curl-enhancing beauty that curly or wavy curly hair does. Ending3: To ensure that your hair is properly hydrated, follow up with a straightening conditioner. They typically contain moisturizing ingredients, such as argan oil, coconut water, and macadamia oil, that help smooth your hair. Ending4: This is because moisture will evaporate from dry hair and rinsing it out before heating can severely damage it. [substeps] Use a gentle shampoo to avoid drying your hair out too much, as drying out severely damaged hair can result in brittle or split ends.

Answer format: ending1/ending2/ending3/ending4