A fourth style of parenting is known as neglectful/uninvolved

Which one of these characteristics of clinical depression helps to distinguish it from normal sadness?

a. altered brain chemistry b. caused by an identifiable precipitant c. occurs only in people who suffered early losses d. accompanied by a cluster of signs and symptoms, including cognitive features

Researchers only need participants' informed consent when the researchers believe that harm may come to the participants during the study

Indicate whether this statement is true or false.