The correct option is: (B) 1- c
Explanation:
Given equation is x2 + k(x- 1) - c
= x2 + kx - (k + c)
Since, p and q are the zeroes,
... p + q = -k and pq = -(k+ c)
Now, (p - 1) (q - 1) = Pq - q - p + 1
= pq - (p + q)+ 1 = -(k+ c)-(-k) + 1
= -k - c + k + 1 = 1 - c