Which of the following represents a competitive intelligence practice that is both legal and ethical? a. A city council member shares information about the decision process for selecting a contractor to build a new city council building with his wife, an executive with a construction firm bidding on the contract. b. A marketing manager sells confidential plans for a company's expansion into the Far East to a firm that is not a direct competitor. c. An executive attends a trade show solely to obtain a competitor's brochures, listen to sales pitches, and ask questions about the competitor's products. d. A firm hires a competitor's employees and asks them to share the names and addresses of business contacts from their previous company.