Use the information below to answer the following question(s). The following table provides demand and forecast information for a specialty store's products which are particularly popular around Halloween. Period/ Quarter Demand Regression (De-seasonalized) Forecast Winter 13 80 90 Spring 240 198.6 Summer 300 307.1 Fall 440 415.7 Winter 14 400 524.3 Spring 720 632.9 Summer 700 741.4 Fall 880 850 What is the seasonal index for the Spring season/ quarter? Group of answer choices 0.988 1.171 0.255 0.837