Your answer is 30.31
Hope this helps!
If the question is, what is it? It is called this figure a pencil of lines.
А pencil of lines can consist of any number of straight, the main thing that they all had one common point. Here you can find a lot of vertical angles and rays.
A. 4,8,12,16... because its 4*2 is 8 4*3 is 12 and so on
I belive the answer would be a or d