Answer:
The answer is D. an indoor buffet
Step-by-step explanation:
During the foliage season in Vermont, weather can be extremely cold. It typically snows from October. It's risky to hold an outdoor event during this time of the year. An indoor boxed lunch is quite casual, while an indoor banquet is boring. Hence, I will suggest client to hold an indoor buffet when guests can enjoy both food and New England's natural beauty during the season of foliage.