The angle of projection at which the horizontal range and maximum height of projectile are equal is

  • A

    ${45^o}$

  • B

    $\theta = {\tan ^{ - 1}}(0.25)$

  • C

    $\theta = {\tan ^{ - 1}}(4)$ or $\theta = 76^\circ $

  • D

    ${60^o}$

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