Which one does not differ between a C_3 and a | vedclass

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(B) To determine which factor does not differ between $C_3$ and $C_4$ plants,let us analyze each point:$I.$ Initial $CO_2$ acceptor: In $C_3$ plants,i

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$IV$

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(B) To determine which factor does not differ between $C_3$ and $C_4$ plants,let us analyze each point:$I.$ Initial $CO_2$ acceptor: In $C_3$ plants,it is $RuBP$,while in $C_4$ plants,it is $PEP$. They differ.$II.$ Extent of photorespiration: $C_3$ plants show high photorespiration,whereas $C_4$ plants show negligible or no photorespiration. They differ.$III.$ Enzyme catalyzing $CO_2$ fixation: $C_3$ plants use $RuBisCO$,while $C_4$ plants use $PEP$ carboxylase for initial fixation. They differ.$IV.$ Presence of Calvin cycle: Both $C_3$ and $C_4$ plants perform the Calvin cycle to synthesize sugars. They do not differ.$V.$ Leaf anatomy: $C_4$ plants exhibit Kranz anatomy,which is absent in $C_3$ plants. They differ.Therefore,only $IV$ is common to both.

Which one does not differ between a $C_3$ and a $C_4$ plant?
$I.$ Initial $CO_2$ acceptor.
$II.$ Extent of photorespiration.
$III.$ Enzyme catalyzing reaction that fixes $CO_2$.
$IV.$ Presence of Calvin cycle.
$V.$ Leaf anatomy.

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Which one does not differ between a $C_3$ and a $C_4$ plant?$I.$ Initial $CO_2$ acceptor.$II.$ Extent of photorespiration.$III.$ Enzyme catalyzing reaction that fixes $CO_2$.$IV.$ Presence of Calvin cycle.$V.$ Leaf anatomy.