ANNOUNCEMENT In accordance with the international security regulations, the following items are never allowed to be taken onto a plane by passengers, either in their carry -on bags or in their luggage ; weapons, including knives and guns; explosives, including dynamite and firework. The following items may be placed in checked luggage but not on carry-on including wrenches bags. Tools, hammers, screwdrivers, and sport equipment such as golf clubs, baseball bats, skis and ski poles. When you pass through the security line, all bags will go through our X-ray machines and some bags will be manually checked by personnel , as well. Thank you for your cooperation have a safe an pleasant flight.24. What is the writer's purpose to write the text ?

A. To warn passengers about the regulations before flight.

B. To remind people what they should bring in a plane.

C. To inform people how to check in before boarding.

D. To tell passengers about t