A. Constructive is correct
The advertising method that this demonstrates is card stacking.
An advertising method in which the buyers are persuaded to buy a product by deliberately disguising information and trying to distort actual details by suppressing the holistic information on the product.
In this case, the company is focusing on the positive side of the product thereby deliberately excluding other important details about harm caused by the product.
This is a case of card stacking.
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When you rub a balloon on a sweater, for example, some electrons come off and end up on the balloon. The fibers have lost electrons giving them a positive charge. The rubber gained electrons giving it a negative charge.
<span> Uniform chemical composition
Solid
Crystalline structure </span>these are the characteristics of minerals