How to break up ice on a driveway<br>Choose a deicing product carefully. Not all deicing products are the same, so read the labels and choose the one that is best for your deicing needs. Rock salt (sodium chloride) is the most common deicing product, but keep in mind that this product may contain cyanide in it as well.
Can we infer the following?
Jagged rocks are not the most common deicing product.

Select from the following. (I). Yes (II). It's impossible to say (III). No
The answer is:
(I).