When should you pick up a child and place him in a crib or playyard? a.) when he misbehaves b.) when you have other tasks to attend to c.) when a situations is dangerous and potentially harmful d.) while waiting for a parent to arrive e.) when he has been consistently aggressive

b becuse it is wright by morsal resosb

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .

answer; a biased sample;