The musculature of $Ascaris$ consists of:

$A$ true coelom is absent in which phylum?

The larva of $Ascaris$ is known as:

Match the following columns:

Column-$I$ (Animal)	Column-$II$ (Genus)
$P$. Roundworm	$I$. Wuchereria
$Q$. Filarial worm	$II$. Ascaris
$R$. Hookworm	$III$. Ancylostoma

Assertion $A$: In $Aschelminthes$, the juvenile form resembles the adult.
Reason $R$: Indirect development is observed in $Aschelminthes$.
Which option is correct for Assertion $A$ and Reason $R$?

The embryonated egg of $Ascaris$ is: