Let $N$ be the number of quadratic equations of the form $ax^2 + bx + c = 0$ with coefficients $a, b, c \in \{0, 1, 2, \dots, 9\}$ such that $0$ is a solution of each equation. Then the value of $N$ is

  • A
    $2^9$
  • B
    $3^9$
  • C
    $90$
  • D
    $81$

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