For each of the following events in a wholesale auto parts firm, identify its location in the value chain. If it is a support activity, identify the primary activity it is supporting.

a. Hiring new salespeople

b. Filling an order for a large retail auto parts distributor

c. Contract negotiation with auto parts manufacturers

d. Construction of automated warehouse management system

e. Study of emerging trends among consumers of auto parts

f. Purchasing of advertising in trade magazines 

g. Training of new warehouse workers 

h. Signing a new agreement with unionized delivery employees 

i. Issuing equity to add new distribution hubs 

j. Receiving a shipment of air filters from a supplier