An n x a array v is defined as follows : v [i,j] = i.j for all i. j 1 < = i < = n ,i < j =n.

B) n-1

C) <math xmlns="http://www.w3.org/1998/Math/MathML"><mo> </mo><mo> </mo><msup><mi>n</mi><mn>2</mn></msup><mo>(</mo><mi>n</mi><mo>+</mo><mn>1</mn><mo>)</mo><mo>/</mo><mn>2</mn></math>

D)