Company A is providing technical support for smartphone users. It sees most of its demand during the evening hours of the day. The demand for its support services for the last three days was as follows:

Day Time of Day Demand in thousands
1 Morning 42
1 Afternoon 75
1 Evening 125
2 Morning 35
2 Afternoon 88
2 Evening 110
3 Morning 52
3 Afternoon 65
3 Evening 155

What is the seasonal index for Afternoon?

a. 1.00

b. 0.92

c. 1.57

d. 0.52