What promotion blend would be most appropriate for producers of the following established products? Assume average- to large-sized firms in each case and support your answer.
a. Chocolate candy bars.
b. Car batteries.
c. Panty hose.
d. Castings for truck engines.
e. A special computer used by manufacturers for control of production equipment.
f. Inexpensive plastic rainhats.
g. A digital tape recorder that has achieved specialty-product status.