Read the following text and answer the question! Ladies and Gentlemen, in case of emergency, take the life jacket located under your seat. Put the life jacket over your head and then fasten the jacket tapes around your waist. Do not inflate the jacket until you leavethe aircraft. The jacket will be automatically inflated when you pull thecord, but if not, you can blow the chip to inflate it. A light is attached to the jacket for attracting attention. The life jacket should be removed only in case of emergency. The use of TV set, AM and FM radios, radio cassettes recorders, walkman, and any mobile phones are prohibited on board as they interfere the communication and navigational system. We wish you an enjoyable flight. Based on the text, the function of the light attached to the life jacket is ....

Question

Read the following text and answer the question!

Ladies and Gentlemen, in case of emergency, take the life jacket located under your seat. Put the life jacket over your head and then fasten the jacket tapes around your waist. Do not inflate the jacket until you leave the aircraft. The jacket will be automatically inflated when you pull the cord, but if not, you can blow the chip to inflate it. A light is attached to the jacket for attracting attention. The life jacket should be removed only in case of emergency. The use of TV set, AM and FM radios, radio cassettes recorders, walkman, and any mobile phones are prohibited on board as they interfere the communication and navigational system. We wish you an enjoyable flight.

Based on the text, the function of the light attached to the life jacket is ....