800×36%=288(人);
4+8+10+16+12=50(人);
4÷50=
4
50 ;
8÷50=
8
50 ;
10÷50=
10
50 ;
16÷50=
16
50 ;
12÷50=
12
50 ;
288×
4
50 ×5,
=23.04×5,
=115.2(元);
288×
8
50 ×10,
=46.8×10,
=468(元);
288×
10
50 ×15,
=57.6×15,
=864(元);
288×
16
50 ×20,
=92.16×20,
=1843.2(元);
288×
12
50 ×25,
=69.12×25,
=1728(元);
115.2+468+864+1843.2+1728,
=583.2+864+1843.2+1728,
=1447.2+1843.2+1728,
=3290.2+1728,
=5018.2,
≈5010(元).
故答案选:C.