Each equation contains statements given in two columns which have to be matched. Statements (a,b,c,d) in column I have to be matched with Statements (p, q, r, s) in column II. If the correct match are `avecp ,avecs ,bvecq ,bvecr , cvecp , cvecq ,` and `dvecs` , then the correctly bubbled `4x4` matrix should be as follows: Figure Consider the lines represented by equation `(x^2+x y-x)x(x-y)=0,` forming a triangle. Then match the following: Column I|Column II Orthocenter of triangle |p. `(1/6,1/2)` Circumcenter|q. `(1(2+2sqrt(2)),1/2)` Centroid|r. `(0,1/2)` Incenter|s. `(1/2,1/2)`