Identify the vector for elephantiasis.

If a person develops chronic swelling of the lymphatic vessels in the appendages and deformity of the genitals, which disease will the person have?

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
$\quad\quad P\quad Q$

Internal bleeding,fever,muscular pain = $Ascariasis$ :: abdominal pain,constipation and blockage of the intestinal passage = ?

In the mosquito,the microfilariae transform into ......... in approximately $10$ days.

The adult $Wuchereria$ $bancrofti$ lives in: