Final answer:
Daylight saving time in Australia was first introduced in 1917 to align human activities with the sun's schedule, thereby extending evening daylight hours.
Step-by-step explanation:
Daylight saving time was first introduced to Australia during World War I. The correct answer to when daylight saving was introduced to Australia is B) 1917. The concept of daylight saving time involves shifting the clock forward by one hour to extend the evening daylight during the warmer months, typically between April and October. This practice does not literally save daylight, but rather shifts human activities to align with the sun's schedule, allowing for extended daylight during evening hours.