4. The following statements below describes the term "HARDENING" in agriculture, except one? A. hardening is the process of exposing transplants (seedlings) gradually to outdoor conditions. B. It enables your transplants to withstand the changes in environmental conditions they will face when planted outside in the garden C. It encourages a change from soft, succulent growth to a firmer, harder growth D. hardening is the process of firming up the soil around the roots of the seedlings prior to transplanting.​