Fruits which break at maturity into number of pieces equal to the number of carpels are found in :

Question

(I) Aristolochia

(II)Datura

(III)Dolichos

(IV) Abelmoschus

$\begin {array} {1 1} (1)\;(I),(II) & \quad (2)\;(II),(III) \\ (3)\;(I),(IV) & \quad (4)\;(III),(IV) \end {array}$