If roots of ${\mathrm{ax}}^2+\mathrm{bx}+\mathrm{c}=0\text{ are }\mathrm{\alpha }\text{ and }\mathrm{\beta }$,and 4a + 2b + c > 0, 4a - 2b + c > 0, and c < 0, then possible value/values of $\left[\mathrm{\alpha }\right]+\left[\mathrm{\beta }\right]$ is/are (where [.] represents greatest integer function)

• A

  -2

• B

  -1

• C

  0

• D

  1