Ethical standards are often considered difficult to enforce. Which one of the following is a good approach to ensuring ethics are followed? a) Randomly inquiring of certain employees whether they are being ethical or not. b) Routinely check to ensure that applicants make truthful statement on their employment applications. c) Ensuring the CEO always includes a comment on the newsletter that ethics are important and must be followed. d) Ensuring that key employees sign conflict of interest statements. 3 points Sleeker Speakers Manufacturing Company manufactures two types of surround speakers. Sleeker Speakers provides the following data, with respect to allocating its annual overhead cost of /$455,000: Sleeker Speaker Product Speaker Tone Speaker Rings Units per year 16,000 21,000 Machine hours/unit 4.0 6.0 Materials cost/unit $1,700 $3,000 Labor cost/unit $ 900 $1,500 What are the cost drivers