For each of the following events in a large baked goods manufacturer, identify its location in the value chain. If it is a support activity, identify the primary activity it is supporting.

a. Production information system development

b. Deliveries of baked goods to chain supermarkets

c. Long-term debt refinancing to take advantage of lower interest rates

d. Deliveries of flour and yeast to factory warehouse

e. Securing adequate supplies of flour and yeast

f. Training new salespeople 

g. Preparation of manuals for the production information system 

h. Negotiating favorable rates for power and water 

i. Construction of automated warehouse receiving system 

j. Installing new racks at their convenience customers' locations