Your best friend is considering opening Emerald City, a canine day- and long-term care business that also performs grooming and minor veterinary services. She wants to know what is meant by hit-and-run (or guerrilla warfare) and preemptive strike offensive strategies. Explain to your friend what hit-and-run and preemptive strike offensive strategies are and then give her the circumstances in which either of these strategies will likely be most effective.