Let $\alpha = 3 + 4 + 8 + 9 + 13 + 14 + \dots$ up to $40$ terms. If $(\tan \beta)^{1020}$ is a root of the equation $x^2 + x - 2 = 0$,where $\beta \in (0, \frac{\pi}{2})$,then $\sin^2 \beta + 3 \cos^2 \beta$ is equal to:

  • A
    $2$
  • B
    $7$/$4$
  • C
    $5$/$2$
  • D
    $3$/$2$

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