Assume that you are a male salesperson. What advice does the text give you about the length of your hair? a. Wear your hair long to show an optimistic outlook on life. Use hair styling products to maintain a stylish appearance. b. Wear your hair short to suggest a conservative, professional, and business-like approach. c. Wear your hair at a medium length to avoid offending prospects that prefer long or short hair. d. Consider the types of customers you will be calling on and select your hairstyle accordingly.