A、Spring. B、Summer. C、Autumn. D、Winter. C录音一开始就指出“At Cox FarmsFall Festival…”，可知人们在“考克斯农场秋季节”来到农场挑选南瓜，所以时间应该是秋天，所以答案为C项。

(3)At Cox Farms Fall Festival in the Washington suburbs, picking out the perfect pumpkins is a big part of fun. Every year people come to Cox Farm, bring their family out for the festival and get the pumpkins for Halloween carving. It is a family tradition.(4)The pick-your-own farm offers 40 or 50 different varieties of pumpkins and gourds in different sizes, shapes and colors. And all together 150,000 pumpkins have been harvested this vear. Lucas Cox is the second generation co-owner, his family has been holding this fall festival since 1983, and it has grown every year. They have over 100, 000 visitors for the season. Halloween is the fastest growing holiday in the U. S. And the pumpkins are the staple of Halloween. People cannot have Halloween without pumpkins. So that means pumpkin business is growing every year.
3. In which season do people pick pumpkins at Lucas Cox’s farm?
4. How many varieties of pumpkins does pick-your-own farm offer?