Regarding Marking and Labeling Rules in Mexico

Regarding marking and labeling rules in Mexico:

A) the cost of complying with the rules is so costly that many small companies cannot afford to sell their products in Mexico.
B) product warranties must be clearly stated.
C) exporters to Mexico need to seek good advice in labeling and marking products to avoid long delays in getting their goods to markets in Mexico.
D) there are specific labeling requirements for certain products.
E) all of the above are true.