The marketing concept holds that ________.
a. customers who are coaxed into buying a product will most likely buy it again
b. a new product will not be successful unless it is priced, distributed, and sold properly
c. consumers and businesses, if left alone, won't buy enough of the organization's products
d. a better product will by itself lead people to buy it without much effort from the sellers
e. a firm should find the right products for its customers, and not the right customers for its products