Which of the following business situation would be banned by the Sherman Anitrust Act?

Question

A. A company invents a better product and charges higher price.
B. A company lowers the price of a product in order to gain market share.
C. A company buys up all competitors then raises prices.
D. A company uses a labor-saving technology to reduce production costs and makes more profit.
E. A company drives a competitors out of business by providing a better product at lower price.