A caterer made salads. Each salad is made from mixed greens or spinach. The protein on the salad is either chicken, steak, or tofu and each salad has either Italian dressing or a vinaigrette. The salads are placed in a cooler. Without looking, a guest chooses a salad from the cooler. What is the probability that the guest will get a salad with chicken? please make it a fraction in simplest form