While examining a patient, the following symptoms are observed:
$(i)$ Chronic inflammation in the lymphatic vessels of the lower limbs.
$(ii)$ Genital organs are also affected.
What is the disease diagnosed by the doctor?

Which is the correct option for the vector, the infective stage of the pathogen entering the human body, and the location of the pathogen in the vector for elephantiasis?

Which pathogen is responsible for the disease shown below?

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
$\quad\quad P\quad Q$

Which of the following statements is false?

Filariasis is caused by: