The plant body is differentiated into which of the following parts?

Consider the following statements:
$I$. In racemose inflorescence,the flowers are borne in a basipetal order.
$II$. Epigynous flowers are seen in rose plant.
$III$. In brinjal,the ovary is superior.
Which of these statements are correct?

Match the Column-$I$ and Column-$II$ and choose the correct option:-

Column-$I$	Column-$II$
$(i)$ Fibrous root	$(a)$ Citrus
$(ii)$ Stem tendrils	$(b)$ Legumes
$(iii)$ Stem thorns	$(c)$ Wheat
$(iv)$ Pulvinus	$(d)$ Grape vine

Identify the correct set of statements :
$(a)$ The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea
$(b)$ Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin
$(c)$ Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves
$(d)$ Rhizophora shows vertically upward growing roots that help to get oxygen for respiration
$(e)$ Subaerially growing stems in grasses and strawberry help in vegetative propagation
Choose the correct answer from the options given below:

Morphology is the study of $............$

Which of the following is an incorrect series of Polypetalae?