The floral formula for Malvaceae is

Commercially useful surface fibers are obtained from which of the following?

Ikebana is the art of

Raphides are needle-like crystals made up of

Match the following columns:

Column-$I$ (Common Name)	Column-$II$ (Scientific Name)
$A$. Hibiscus	$i$. Bougainvillea spectabilis
$B$. Lemon	$ii$. Allium cepa
$C$. Sunflower	$iii$. Hibiscus rosa-sinensis
$D$. Bougainvillea	$iv$. Citrus limon
$E$. Onion	$v$. Helianthus annuus
-	$vi$. Rosa indica

Statement $X$: $Hibiscus$ $rosa-sinensis$ was placed in $Thalamiflorae$ by $Bentham$ and $Hooker$.
Statement $Y$: It possesses a cup-shaped thalamus and its petals are fused.