Each warning label must contain this element and its purpose is to provide a visual alert to users to the chemical hazards to which they may be exposed. This element must in the shape of a square set at a point and include a black hazard symbol on a white background with a red frame sufficiently wide enough to be clearly visible. What is being referenced?

A.
Pictogram
B.
Precautionary Statement
C.
Product Identifier
D.
Signal Word