At what point does a consumer stop buying additional units of a product? A. When marginal benefit is more than the marginal cost B. When marginal benefit is more than zero C. When the marginal cost exceeds marginal benefit D. When the marginal cost is equal to the marginal benefit. Help please!

What is the difference between a journal entry written by an eyewitness to an event and a play written about the same event? a. the journal entry is a historiographical source, while the play is a periodical source. b. the journal entry is a chronological source, while the play is a primary source. c. the journal entry is a primary source, while the play is a secondary source. d. the journal entry is a secondary source, while the play is a periodical source.

Which worm is described by these characteristics? - is part of the phylum nematoda - has nostrils but no eyes - moves its body by bending from side to side

Which sentences do not meet the requirements of an effective thesis statement? select all that apply. due to educational cutbacks, we really need your to buy new softball and baseball equipment. if you donate to our cause, you will receive free tickets to all our school's sporting events. your generous donation will allow our school to offer softball and baseball this year. in addition to free tickets, we will allow you to hang an advertising banner on the outfield fence. if you donate to support our cause, you will not only receive free tickets and a free advertising opportunity, you will earn the devotion and loyalty of many within our school.