If x1, x2 are real roots of ax2 – x + a = 0. Then, find the set of all values of parameter ‘a’ for which |x1 – x1| < 1?

• A. (1 – 5a)/ a2 < 0
• B. (1 – 5a)/ a2 = 0
• C. (1 – 5a)/ a2 > 0
• D. (1 – 5a)/ a < 0