Data plotted in the graph appear in the table below.

Obs #	Day	Demand		Obs #	Day	Demand
1	Mon	33		12	Fri	54
2	Tue	34		13	Sat	95
3	Wed	37		14	Sun	92
4	Thu	42		15	Mon	58
5	Fri	44		16	Tue	63
6	Sat	79		17	Wed	67
7	Sun	86		18	Thu	70
8	Mon	51		19	Fri	74
9	Tue	50		20	Sat	114
10	Wed	51		21	Sun	119
11	Thu	52

Refer to Graph 8.1. What is the seasonal index for the first Saturday in the data set?

The average of demand in the first week is 50.714 and use the Saturday demand divided by the average to obtain the seasonal index.

Group of answer choices

A) 1.69

B) 1.56

C) 0.64

D) 0.58