Please choose the correct solution to the question: How to charge a mobile phone

Solution1: Using the proper brand adaptor and cord, insert the charger wire into the charging dock of the wall socket. Allow to charge until nearly 100 percent so as to not wear down the battery.

Solution2: Using the proper brand adaptor and cord, insert the charger wire into the charging dock of the phone. Allow to charge until nearly 100 percent so as to not wear down the battery.

Answer format: solution1/solution2
Answer: solution2