Answer:
c) Provide detailed hazard and safety information about a controlled product
Step-by-step explanation:
A safety data sheet is a sheet having listed all the information which involves in chemical handling, its hazards and storage management. It has physical, environmental and health related hazards and how it can be stored and managed and used.
All other options are wrong as SDS does not assist purchasing of chemicals and does not decide workplace policy. Therefore option a and b are wrong.