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The roots of the quadratic equation ax^(...

The roots of the quadratic equation `ax^(2) + bx + c = 0` `(a ! = 0 )` are given x = `(-b pm sqrt(b^(2) - 4ac))/(2a)` are
(i) real and distinct roots if `D gt 0`
(ii) repeated roots if D = 0
no real roots if `D lt 0`, where `D = b^(2) - 4ac`
The nature of the roots of quadratic equation `4x^(2) + 20x + 25 = 0` is

A

real and distinct

B

real and repeated

C

not real

D

none of these

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