单选题 US citizens and businesses have long complained that many of the government's rules are written in overly technical, complicated language.
The Occupational Safety and Health Administration (OSHA) has particularly been the subject of much criticism and debate.
This agency makes and enforces rules to ensure employee health and safety on the job. The problem is, even after reading the roles several times, employees often don't know what is expected of them.
OSHA has been the subject of much criticism mainly because

• A. its rules are wrongly expressed.
• B. its rules focus on too many details.
• C. its rules use many technical words.
• D. its rules are beyond comprehension.