Final answer:
True. Informed consent has both required and optional elements. The necessary elements include information about the study purpose, procedures, risks, benefits, and confidentiality.
Step-by-step explanation:
True. Informed consent has numerous required elements as well as several optional elements. When obtaining informed consent from study participants, it is essential to include the necessary information about the study, such as the purpose, procedures, potential risks, potential benefits, and confidentiality. However, there may be additional optional elements depending on the specific study and ethical guidelines.