The data exam$\_$salesdata$($put$\_$you$\_$last$\_$name$\_$here$).$xlsxOpen this document with ReadSpeaker docReader Download exam$\_$salesdata$($put$\_$you$\_$last$\_$name$\_$here$).$xlsxOpen this document with ReadSpeaker docReaderincludes Company A$$s sales information from May $2020$ to April $2023.$ Use the information and Excel to determine the trend and seasonality of sales and answer the following questions:

a$.$ Describe the trend in sales.

b$.$ Which month generates the highest level of sales on average?

c$.$ What is Company A$\text{'}$s sales forecast for May $2023?$ Please write down the equation and the calculated$/$predicted sales forecast value.