一個用$$2016$$個銅板所排成的三角形陣列， 第一列排放$$1$$個銅板，第二列排放$$2$$個銅板，第三列排放$$3$$個銅板， 依此繼續排放，直到第$$N$$列排放$$N$$個銅板恰好排完．試問$$N$$各個位數的數字和爲多少？  A triangular array of $$2016$$ coins has $$1$$ coin in the first row, $$2$$ coins in the second row, $$3$$ coins in the third row, and so on up to $$N$$ coins in the Nth row. What is the sum of the digits of $$N$$?
选项为:A:$$6$$  B:$$7$$  C:$$8$$  D:$$9$$  E:$$10$$  请回答其中一个选项.