Final answer:
The Japanese public's reaction to mashed potatoes and gravy at KFC in Japan cannot be determined without specific data. Food preferences vary, and KFC adapts its menu to local tastes, but without consumer feedback, we can't assess their reaction.
Step-by-step explanation:
The feelings of the Japanese public towards the inclusion of mashed potatoes and gravy on KFC's menu in Japan cannot be answered definitively since we do not have specific data or a clear consensus. In general, food preferences can vary greatly among different cultures and individuals, and what may be considered a staple or beloved dish in one country can be met with indifference or even distaste in another. However, it's worth noting that KFC has adjusted its menu in various countries to suit local tastes, implying that any new offerings, including mashed potatoes and gravy, are typically aimed at appealing to the local market.
Without direct surveys or consumer feedback, it's challenging to categorize the Japanese public's reaction to mashed potatoes and gravy at KFC into the options provided (Delighted, Thrilled, Indifferent, Unhappy). It's recommended to look for market research or customer satisfaction surveys specific to Japan's KFC menu items to gain a clearer understanding of the public's sentiment.