Geographical topics. Among the following solar terms, at noon, the shadow of the awning on the parking space is a. vernal equinox B. summer solstice C. autumn equinox D. winter solstice.

To solve a geographical problem, you must first make clear the latitude of this place, which is the key to solving the problem.

The arrow ① ② ③ in the figure indicates the midday sun ray from the bisector to the sun, ① the noon sun is the highest, which is from summer to sun, ③ the noon sun is the lowest, which is from winter to sun, ② it is between the two, which is the vernal equinox. As can be seen from the figure, when the sun is high at noon, such as ①, the shade on the parking space has the largest shadow. Zhejiang Province is located in the north of the Tropic of Cancer, and it is the Tropic of Cancer and its north area from summer to Sunday.

Therefore, choose: B.