Final answer:
The condition when larvae of certain parasites migrate through body tissues is visceral larval migrans, and when affecting the skin, it's called cutaneous larval migrans. The correct option is 2.
Step-by-step explanation:
The condition called when larvae of certain parasites migrate through the tissues of the body is visceral larval migrans. When it affects the skin, it is known as cutaneous larval migrans. This condition is often associated with hookworm species like Ancylostoma braziliense, which commonly infect animals such as cats and dogs. These larvae can penetrate human skin and migrate, causing pruritic tracks on the skin, indicative of cutaneous larval migrans. Other parasitic infections such as ascariasis, caused by Ascaris lumbricoides, result from consuming contaminated food and water, not through skin penetration.