Let $N$ be the number of solutions of the equation
$x_0+2 x_1+2 x_2+2 x_3+2 x_4+x_5=6$
with $x_0, x_1, x_2, x_3, x_4$ and $x_5$ taking non-negative integer values. Then

• A

  $N \lt 50$
• Correct answer
  B

  $50 \leq N \lt 100$
• C

  $100 \leq N \lt 1000$
• D

  $1000 \leq N$

Hence, the correct answer is option: 'B'.