For the quadratic z^2 - z + 2 = 0, which statement about its roots is true?

For the quadratic z^2 - z + 2 = 0, which statement about its roots is true?

• A. Product z1 z2 = 2 and Sum z1 + z2 = 1
• B. Product z1 z2 = -2 and Sum z1 + z2 = 1
• C. Product z1 z2 = 2 and Sum z1 + z2 = -1
• D. Product z1 z2 = 4 and Sum z1 + z2 = 3

Answer: (A)