Final answer:
The recommended protective clothing and equipment for MDA-exposed workers includes gloves, respirators and safety goggles with none of the listed options being excluded.
Step-by-step explanation:
The recommended protective clothing and equipment for MDA-exposed (methylenedianiline) workers may include the following: gloves to protect the hands, respirators to safeguard the respiratory system from inhalation of harmful substances and safety goggles to shield the eyes.
The 'except' component of the question indicates that each of these options is indeed a recommended form of protection. Therefore the answer is '4) None of the above' because all listed items are recommended for MDA-exposed workers.