The answers are: "Have complete control over themselves (2nd option)", "Can develop into the person they choose to be (5th option)", and "willingly can change their attitudes (6th option".
Explanation: The concept of free will states the capacity people have to choose between different options related to their actions. It talks about the power and free decision people have. It means that their actions are decided by themselves and not from somebody else.
In the chosen options we can identify the freedom the human has to control over themselves, can freely develop their personality and their attitudes.