Answer: subject
Explanation: what your drawing is the main thing
The answer to this is needlestick safety and prevention.
The Needlestick Safety and Prevention Act(Public Law 106 - 430) is made by Occupational Safety and Health Administration (OSHA) from US Department of Labor. It is made because many pathogens are bloodborne. The accidental sharp injuries in the medical field also are frequent and dangerous. This act will help protect the healthcare and prevent disease spread by needlestick.
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This are fixed focus lens. This type of lens cannot change the focus farther or closer. This is different from autofocus lens whics uses sensors to determine the correct focus. Fixed focus lens usually relies on the depth of the field to produce image that is sharp.
