Two advanced thermal insulating and anti- condensation protection alternatives have been proposed for new Antarctica marine vessels subject to the harsh marine environment. One alternative must be selected. Estimated savings from reduced total installation and maintenance costs over conventional insulation are the following: 
Which alternative should be recommended based on the present worth method? Use a MARR of 18 percent and a study period of 8 years. Assume negligible salvage values.
Definitions:
Enteric Nervous System
A subdivision of the peripheral nervous system that directly controls the gastrointestinal system.
Gut
The gastrointestinal tract that digests food, absorbs nutrients, and expels waste.
Ventral
Pertaining to the front or anterior part of the body in vertebrates or the lower side in humans.
Medial
Situated in or pertaining to the middle; often used to describe the location of structures within the body or brain relative to the midline.
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