Read the weather forecast chart below and answer the question 1 ~ 2.

1. According to the information in the picture, the closest solar term that day is (b).

A. vernal equinox (2 March1) B. Grain Rain (20 April)

C. Changxia (May 5) D. Xiaoman (May 2 1)

Today is 18: 56-05: 29 = 13 hours and 27 minutes, tomorrow is 18: 57-05: 28 = 13 hours and 29 minutes, and the day after tomorrow is18:. The vernal equinox has the same length of day and night, and the length of day is 12 hour. Today, the length of the day has increased by 1 hour and 27 minutes. If the length of the day is increased by 2.5 minutes every day, 1 hour 27 minutes/day is about 35 days, and March 2 1 day +35 days = April 25.

Answer: B. Grain Rain (April 20)