"gothic" was a term originally applied to works that people thought to be

barbaric.

Explanation:

Originally, the word “gothic” was used to reference a form of art that was first developed in regions of Northern France during the 12th century, most notably in architecture and sculpture. The term gothic was used in pejorative terms as barbaric and it was opposed to the classical values of Roman art and its later rebirth in Italy and all of Europe during, indeed, the historical period called the Renaissance. In architecture it is easy to identify its origins and influence through the use that they made of pointed arches and elongated human and divine figures.  

to show how the cables work.

a. is the correct answer