Observation you gather information that's a. formal, structured, and comprehensive. b. meaningful in the child's context. c. naturally occurring and child-led. d. useful for planning other ways to assess the child.

the psychologist would claim that the research results were significant.

the answer for your question is b.

with the development of the times, more and more chemical reagents or drugs (such as ox bile/bile extract powder (ox bile desiccated), dried or desiccated which contains ox bile acids. this powder is specifically been developed for pharmaceutical industry. for more information: ) for the pharmaceutical industry use, its supervision can not be ignored.