In the case of the $C_4$ pathway:

In $C_4$ plants,the bundle sheath cells

In the leaves of $C_4$ plants,malic acid formation during $CO_2$ fixation occurs in the cells of

Photosynthesis in $C_4$ plants is relatively less limited by atmospheric $CO_2$ levels because:

During the $C_{4}$-cycle,the acids formed are:
$I$. Picric acid
$II$. $OAA$ (Oxaloacetic acid)
$III$. Malic acid
$IV$. Aspartic acid
Select the correct option.

Suppose $Euphorbia$ and $Maize$ are grown in the tropical area. What differences do you think are there in their leaf anatomy?