Available options:
[i] virus.
[ii] produce offspring.
[iii] larvae.
[iv] Some animals with shells.
[v] mate with females.
[vi] By wind and rain.
[vii] spread flower seeds.
[viii] acellular.

Fact 1: Mollusks reproduce sexually. Fact 2: Some mollusks have a shell. Given the two facts above, what types of animals reproduce sexually?
Answer:
[iv]