Concept:The Sun is directly overhead at the Tropic of Capricorn during the December solstice.Explanation:The Earth’s axis tilts the Southern Hemisphere toward the Sun on December 22.On this date, the Sun’s rays fall vertically at the Tropic of Capricorn, located at 23.5∘ S latitude.This event marks the summer solstice in the Southern Hemisphere and the winter solstice in the Northern Hemisphere.Therefore, the correct date for the Sun being overhead at the Tropic of Capricorn is December 22.Answer:B. December 22