Which of the following is the correct order?

Call NetManager.getInstance(Context9) to get the instance object of network management.

When the developer combed through the development steps, the above steps were sorted according to the order in which the features were completed in the code.

Which of the following is the correct order?
A . 4→1→2→3
B . 4→2→1→3
C . 4→3→2→1
D . 2→1→4→3

Answer: C