In the figure below, which of the following are A to E likely to represent?
chronic lymphocyte leukemia; melanoma; medulloblastoma; microsatellite instability (MSI)-positive colorectal cancer; MSI-negative colorectal cancer. 
Definitions:
Economic Life
The expected period of time during which an asset remains useful to the owner for the purpose of generating revenue.
Operating Lease
A lease agreement that allows the lessee to use an asset for a specific period without ownership, where lease payments are treated as operational expenses.
Direct Lease
A leasing agreement where the lessor buys the asset and then leases it directly to the lessee.
Manufacturer
An entity that makes goods through a process involving raw materials, components, or assemblies, usually on a large scale.
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