Choose the best
a. the classification methods such as k-nearest-neighbors, classification tree, neural network, support vector machine, etc. are the supervised learning methods that try to discover optimal or sub-optimal classification boundaries.
b. the ultimate goal of these supervised learning methods such as k-nearest-neighbors, classification tree, neural network, support vector machine, etc. is to generate a model that will simulate some mathematic classification function to minimize the classification error.
c. both a. and b.
d. neither a. nor b.

well cos like a ds it doesn't really die out, unlike for example, fifa, they always come out with a new version, so lets say your fifa 18 is charging you to update the teams and stuff, so, if messi were to go to real madrid (never gonna happen) it would switch messi to the other team, until the owners of fifa come out with fifa 19, then the game would eventually stop updating, and back to the ds, it doesn't really stop working after sometime because there's lots of things that it could be used for, and idk if u know what i'm saying, but long story short, samsung, represents the ds, if they still work, and people love them but not the new version, the old version still works, so they don't really force people to buy new phones, get me?

create an interactive presentation of ms powerpoint or any other presentation software in which define the product's characteristics, benefits, why people consider it, etc.