Which of the following is an example of maturation?
◦ Sahara will not touch a hot stove because she burned herself one time by doing so.
◦ Cameron notices that a thunder clap always seems to follow a bolt of lightning.
◦ One-year-old baby Jesse could not walk two months ago, but now he can.
◦ Mitchell now completes homework assignments the same night he receives them because otherwise he tends to forget about them.