Final answer:
A declarant is required to expressly warrant against defects in plumbing, electrical, mechanical, and other components of newly constructed units and common elements for one year.
Step-by-step explanation:
In the case of newly constructed units and common elements, a declarant is required to expressly warrant against defects in plumbing, electrical, mechanical, and other components. The duration of this warranty period varies, but based on the provided options, the answer would be C) One year.