Question 2 2.5 pts 30 Based on the readings and discussions, which of the following BEST characterizes the nature of marketing strategies? There are some strategies that always produce desirable results and some that never produce desirable results Effective marketing strategies are always preceded by structured marketing research that attempts to understand customers' explicit needs Marketing strategies are usually free from managerial biases In and of itsell, no marketing strategy is always effective or ineffective; the conditions surrounding a strategy affect its likely effectiveness