Final answer:
The Thai Crunch salad traditionally includes chicken as a meat option, and tofu could also be a protein choice as per the provided reference. Beef and shrimp are not mentioned in the reference, hence not suggested for this specific dish(option 1 and 4).
Step-by-step explanation:
When it comes to the Thai Crunch salad, traditionally, the type of meats that are included can vary widely depending on the recipe or restaurant. However, using the specific options you've provided (chicken, beef, shrimp, tofu) and the reference information given, we can determine that the most likely meat to be included in a Thai Crunch salad would be chicken, as the reference mentions "broiled chicken" without skin and with skin.
Tofu, although not a meat, is a protein option that is also included in the reference, making it a plausible choice for a Thai Crunch salad given its popularity in Thai cuisine. It's important to note that beef and shrimp were not listed in the provided information, so we cannot confidently say they are common options for this particular dish.
Hence, the answer is option 1 and 4.