Arthropods first evolved in aquatic habitats. But they were pre-adapted to life on land. By the time members of the Arthropoda moved ashore, they had already evolved several modifications to ensure they would be successful on land. These modifications included all BUT ONE listed here.

Responses
A metamorphosismetamorphosis
B exoskeleton for protectionexoskeleton for protection
C advanced sensory apparatusadvanced sensory apparatus
D waxy cuticle to prevent water loss