A. 21 July
B. 22 December
C. 22 March
D. 21 June
Explanation:
In the Northern Hemisphere the summer solstice occurs on June 20 or 21 and the winter solstice on December 21 or 22. The situation is exactly the opposite in the Southern Hemisphere, where the seasons are reversed. At the winter solstice the day is the year’s shortest, and at the summer solstice it is the year’s longest.