Which of the following plants exhibit variation in the length of their filaments within the same flower?

Consider the following four statements $(i), (ii), (iii)$ and $(iv)$ and select the right option for two correct statements.
Statements:
$(i)$ In vexillary aestivation,the large posterior petal is called standard,two lateral ones are wings and two small anterior petals are termed keel.
$(ii)$ The floral formula for Liliaceae is $\oplus \text{ } \text{O}\mkern-11mu{^\nearrow} \text{ } P_{(3+3)} A_{3+3} \underline{G}_{(3)}$.
$(iii)$ In pea flower,the stamens are monadelphous.
$(iv)$ The floral formula for Solanaceae is $\oplus \text{ } \text{O}\mkern-11mu{^\nearrow} \text{ } K_{(5)} C_{(5)} A_{5} \underline{G}_{(2)}$.
The correct statements are:

Draw a labelled diagram of various parts of the flowering plant.

Match List-$I$ with List-$II$:

Match Column $X$ with Column $Y$ and select the correct option:

Column $X$	Column $Y$
$(1)$ Asteraceae	$(P)$ Orthoptera
$(2)$ Megascolecidae	$(Q)$ Glumiflorae
$(3)$ Blattidae	$(R)$ Inferae
$(4)$ Poaceae	$(S)$ Opisthopora

Distinguish between the following: Stem hair and root hair.