Can i please get some help on this thank you :)

Governments may use trade barriers such as __ to protect businesses and workers in their own country.
A. tariffs
B. comparative advantage
C. NAFTA
D. cultural forces

What is one role of congress in determining the federal budget? a. voting on whether to approve proposed budgets b. announcing the budget to the country c. developing budget requests d. signing spending bills into law

How was apartheid practiced in south africa

How is an objective summary different from an argumentative essay? o a. a summary should remain neutral, but an argumentative essay should promote a certain viewpoint. o b. a summary should use direct quotations, but an argumentative essay should paraphrase evidence. o c. a summary should include a works-cited list, but an argumentative essay should not cite others' work. o d. a summary should focus on a thesis, but an argumentative essay should address many different topics.