यदि $f(x)$ और $g(x)$ दो बार अवकलनीय फलन हैं जो $f''(x) = g''(x)$, $f'(1) = 2g'(1) = 4$ और $f(2) = 3g(2) = 9$ को संतुष्ट करते हैं, तो $x = 4$ पर $f(x) - g(x)$ का मान है:

  • A
    $0$
  • B
    $10$
  • C
    $8$
  • D
    $2$

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