In rabbit the fungiform papillae that contain taste buds are distributed

Question

$\begin {array} {1 1} (1)\;On\: the\: upper\: surface\: of \: the \: tongue & \quad (2)\;At\: the \: base\: of\: the\: tongue \\ (3)\;At\: the \: sides\: of\: the\: base\: of\: the\: tongue & \quad (4)\;In\: the\: margin\: of\: the\: tongue \end {array}$