The options seem a bit mis-formatted but here is the way p is computed:
the decrease is 2000-1600
and it is relative to: 2000 (2003 attendance)
so 
and so that aligns with your Option A. Options B, C, D look incorrect for sure.
Answer:
the maximum height in feet the ball reaches 5ft
Step-by-step explanation:
It could be a parallelogram because they too, have 2 sides that have one value and another two sides with a different value. a rhombus would work too.
5x-2+x-3+x-3 = 34
7x-8 = 34
7x/7 = 42/7
x = 6