Answer:
He is in the phase of life known as C. emerging adulthood.
Explanation:
Emerging adulthood is that stage in life between adolescence and young adult. The individual is starting to have more characteristics of an adult stage as well as adolescent ones.
There are 5 characteristics of this stage:
In this case, Javier is 20 years old so he is between the adolescent and adulthood stage. He is still dependent on his parents but is able to explore his identity further as well as self-focus, for example.