Fill in the Blank with One of the Words or Phrases

Multiple Choice

Fill in the blank with one of the words or phrases listed below. $$\begin{array} { l l l l } \text { general term } & \text { common difference } & \text { finite sequence } & \text { common ratio } \\\text { Pascal's triangle } & \text { infinite sequence } & \text { factorial of } \mathbf { n } & \text { series } \\\text { geometric sequence } & \text { arithmetic sequence } & &\end{array}$$
-A triangular array of the coefficients of the terms of the expansion of (a + b) ⁿ is called ------------.

A) series
B) Pascal's triangle
C) infinite sequence
D) factorial of n