Brlan is repairing an old alarm clock. He needs to replace a device that converts the electric energy into sound energy. Which of these devices should he use?
OA.
O B.
C.
battery
buzzer
motor
Switch

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

i need with 1.3.2 investigate cycling o2 and co2 apex

we need to see it