Lymphedema, i.e., accumulation of lymph fluid in tissue causing swelling, is seen in . . . . . . .

Which of the following parasites penetrates through the skin and enters the intestine?

Explain the disease Elephantiasis.

Which of the following statements is false?

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
$\quad\quad P\quad Q$

Assertion $A$: In elephantiasis, body parts like legs, arms, and genital organs swell significantly.
Reason $R$: In chronic cases, filarial worms block the lymphatic vessels.
Which option is correct for Assertion $A$ and Reason $R$?