Create an abstract data type to store and retrieve coordinates for a point. This constructor should report a list of both coordinates. Write code to
complete it.
point, x: xy: Y

nope i prefer two because it is simpler, i don't like all the powers you get

explanation:

but that's my opinion

the answer is b. executive summary. a management summary, or executive summary, is a short article or section of a document, produced for business purposes, that condenses a longer report or proposal or a group of related reports in such a way that readers can rapidly become familiar with a large body of material without having to read it all.