Làm giúp em phần này vs ạ chỉ cần chọn đáp án thôi ạ ko cần giải thích ạ

Choose the word or phrase (A, B, C, or D) that best fits the blank space in the following passage. We have all heard tales about difficult people at work, usually managers, but the office is also where many people make friends, and friends inspire us (1) do. Research has found that mor ...