When writing about a company in a paper, do i refer to the company as "they" or "it"?

“speak up for tory principles” in his political speech, disraeli addresses the principles of the tory party. explain what they are and how he relates them to the condition of the people. use textual evidence to support your claim

Read this paragraph from a cause-and-effect essay. upwelling and el niño in normal years, the trade winds cause colder, nutrient-rich waters to rise to the ocean surface. this process is called “upwelling,” and it causes small fish called plankton to multiply. which rubric term or phrase would apply to the phrase “trade winds”? a. effect b. elaboration of a cause or effect c. transition between a cause and an effect d. cause

Which fits best in the empty box above?