Respuesta :
Answer:
The correct answer is option b. "when the Southern Hemisphere is pointed toward the sun".
Explanation:
The summer solstice occurs in Australia when the Sun's track across the sky reaches its highest point, which happens once a year during December. Since Australia is located in the Southern Hemisphere, the summer solstice takes place when the Southern Hemisphere is pointed toward the sun. This results in the Sun having its highest point in the sky and makes it the longest day of the year.