Which of the following statements shows a clear example of logos

a. former director of nasa, scott sherrit, admits that there are higher priorities for government spending than space exploration.
b. every year, our government funds nasa to the tune of $17.5 billion, while environmental conservation efforts receive only $12 billion.
c. do you want your grandchildren to know all about distant solar systems but be unable to safely drink the water or breathe the air here on earth?
d. i believe that it is time to shift spending from the outdated nasa program to more relevant issues, such as environmental conservation

Why does the author's description of the mercury boiler—"the mercury, when vaporized, going into a mercury turbine and then into a condenser, remaining hot enough to generate steam in a steam boiler"—intentionally incorporate such highly technical language? using technical language establishes the expertise of the writer and convey the complex nature of the process being described. using technical language allows the writer to subtly poke fun at those who seek to make basic processes seem overly complicated. using technical language encourages readers to develop deeper and more meaningful personal connections to the information. using technical language lets the writer make clear to readers that the article is intended for readers who are themselves experts on electricity.