Duane is attempting to determine consumers' attitudes toward his restaurant by asking them their beliefs about how his restaurant performs on several attributes, such as price, ambience, quality of the food, and friendliness of service. Consumers can rate his restaurant with a score of 1 to 7 for each of these attributes, with 7 being the highest. Duane adds up the scores to see how he performs, using the assumption that a higher total is better. At a basic level, which type of model is Duane using?A. multiattribute attitude modelB. cognitive assessment model C. belief assessment modelD. summation modelE. attribute heuristic model