Please choose the correct solution to the question: Changing the bit on an adjustable screwdriver.

Solution1: Choose the type of bit you need. Gently turn the chuck a quarter turn to enlarge the hole so the bit can fit. Place the bit in the hole and tighten the chuck until the bit is secure.

Solution2: Choose the type of bit you need. Gently turn the chuck a quarter turn to enlarge the hole so the bit can fit. Place the bit in the hole and tighten the chuck until the bit falls out.

Answer format: solution1/solution2
Answer: solution1