The locations that correspond with summer in the Northern Hemisphere are B. D
How to find the locations ?
During the Northern Hemisphere summer, the Earth is tilted towards the Sun, which means that the Northern Hemisphere receives more direct sunlight.
As a result of the Earth's tilt and its position in its orbit, the Northern Hemisphere receives more direct sunlight during the summer. This causes the days to be longer and the temperatures to be warmer.
Location D as can be seen, is in the Northern hemisphere and is on the map when the Earth is tilted towards the sun which makes this summer time.