Nher book writing in college: from competence to excellence, amy guptill contends: a. research shows that deliberate practice—that is, close focus on improving one’s skills—makes all the difference in how one performs b. in college, professors expect you to look deep into the evidence, consider several alternative explanations, and work out an original, insightful argument that you actually care about c. a recent survey of employers conducted by the association of american colleges and universities found that 89 percent of employers say that colleges and universities should place more emphasis on “the ability to effectively communicate orally and in writing.” d. all of the above e. only a and b are true