What Is the Discriminant For $4 x^{2}-12 x+9=0$ ? How Many and What Type of Solutions Does This

Multiple Choice

What is the discriminant for $4 x^{2}-12 x+9=0$ ? How many and what type of solutions does this equation have?

A) Discriminant: 64; Two rational solutions
B) Discriminant: 63; Two irrational solutions
C) Discriminant: 0; One rational solution
D) Discriminant: -64; Two nonreal complex solutions