Answer:
A) Força, musculação, habilidade e foco.
Explanation:
Porque se você trabalhar sozinho, você vai ter que se concentrar. (foco)
They say grade one is easier to learn, and only takes about a year. Grade two is supposed to be more challenging, taking about two to three years. ;) It all depends, I guess.
If it's melt it will become water and then ice
or
If it's stays long enough in colder places it probably become solid
