Please choose the correct ending to complete the given sentence: Health: [header] How to quit smoking with ecigs [title] Know your nicotine intake. [step] Physical withdrawals can be avoided by understanding the amount of nicotine in your e-cig compared to your normal cigarette usage. E-cigs use either nicotine cartridges or liquid nicotine.

Ending1: In order to maintain your current nicotine levels, you will need to know the rough equivalents between cigarette and e-cig nicotine amounts. You can always adjust this if you feel like you need more or less, but you should avoid unknowingly using more nicotine than your body is used to. Ending2: There are two different nicotine categories on the market: mint and me (nicotine pacifiers). Mint may reduce cravings for snacking while simultaneously reducing withdrawal. Ending3: The liquid nicotine is used to put replacement nicotine into your cigarette and then fill the cigarettes with nicotine at the end of each consecutive cigarette. Withdrawal symptoms differ widely depending on the business that is taking (through publicly sold nicotine companies) of the nicotine. Ending4: [title] Identify the essential nicotine molecules in a cigarette. [step] Nicotine molecules are the molecules an individual has to take in to make a habit work.

Answer format: ending1/ending2/ending3/ending4