The correct option is A Cysticercosis
An oncosphere is the larval form of a tapeworm once it has been ingested by an intermediate host animal. Cysticercosis is infection with larvae of T. solium, which develops after ingestion of ova excreted in human feces. Adult worms may cause mild symptoms or passage of a motile segment in the stool. Cysticercosis is usually asymptomatic unless larvae invade the CNS, resulting in neurocysticercosis, which can cause seizures and various other neurologic signs. So, option A is correct.