Filarial larva can be collected from man's

Which worms are responsible for the disease elephantiasis?

In the human body, where do the filarial worms reside during an infection?

Who is the primary host of the filarial worm (Wuchereria bancrofti)?

Internal bleeding,muscular pain,blockage of the intestinal passage,and anemia are some of the symptoms caused due to infection by:

Match the symptoms of the diseases with their respective causative conditions:
Symptoms of Ascariasis $- P$
Symptoms of Filariasis $- Q$
$I -$ Chronic inflammation of lymphatic vessels
$II -$ Internal bleeding,muscular pain
$III -$ Fever,anemia,and blockage of the intestinal passage
$IV -$ Genital organs are often affected,leading to deformities
$\quad\quad P\quad Q$