Classify the following activities as primarily planning, implementation, or control:

a$.$ Doing a cost$-$benefit analysis of adding a new branch versus installing three new automated teller machines $($ATMs$).$

b$.$ Estimating the cost of raw materials to be purchased during the next quarter.

c$.$ Analyzing market demand to assist in the preparation of the sales budget.

d$.$ Compiling the labour report for the past week.

e$.$ Outlining the changes to a process based on a process reengineering team report.

f$.$ Documenting the savings from reductions in raw materials inventory resulting from the adoption of a JIT inventory system.