The Europeans 'wrote' the first question
To students who : frequently multitask during learning situation
These types of student usually cannot miss anything in learning situation. His/her attention will always divided. For example, i'm sure you know someone in your lives who can listen to your teachers explanation while his hand is moving to make notes at the same time without switching from one task to another
According to the Law of Supply, if the price of a product goes up then the quantity supplied will go up. The correct option among all the options given in the question is option "b". Since the company would try to maximize the profit amount regarding the product whose price has been raised, it will increase the quantity of product available in the market.