The correct answer is letter (A)
Explanation: This is the Law of Supply and Demand, is the relation of the sellers and the buyers that can affect the price, if a product has a good selling it may the price decrease, if the product has a low selling make the price increase.
Law of Supply and Demand is responsible for balance of a economy, it can make increase or decrease prices in various ways.
The correct answer is Systematic observation
Systematic observation is a method used to understand how a particular activity or task works. The researcher observes the steps of a process, the tools used, the difficulties that appear, the conversations and results of the work.
Systematic Observation is guided by a defined objective, something you want to know about that activity. The observation is made repeatedly until there is sufficient evidence to state this.
Systematic Observation can be used to do Behavioral Mapping, Task Analysis or Activity Analysis.
Answer: fundamental attribution error
Explanation: Fundamental attribution error is the tendency of others to explain another persons behaviour based on personality or disposition and give little or no concern for other external factors such as situation surrounding the persons behaviour at that particular point in time.
According to the question, Dr. Mitchell's behaviour during lectures is far different to her behaviour when she is alone or with others. Due to her behaviour during lectures her students labelled her an extrovert when in actual sense she is an introvert. Her out going behaviour during lectures can be associated with her surrounding which is the lecture room and students while her personality is she like being alone reading.
Answer:
Warm air rises at the equator and cold air sinks at the poles.