I think that the answer is coins.
I would say C. Through subordinating individual elements to the total effect
Answer:
friend: how?
me: I'll tell you later *leaves*
The center of the Roman Empire is in Italy. ROME. And to be specific,
there was a spot in the forum called the "umbilicus urbis Romae" which
is translated "the center of the city of Rome" or "the navel of Rome".
At any rate, it was the spot from which all distances, from all over the
empire, were measured.
Jackson Pollock
The most prominent American Abstract Expressionist painters were Jackson Pollock, Willem de Kooning, Franz Kline, and Mark Rothko.