Answer:
B. PET
Step-by-step explanation:
The most commonly used raw material for making plastic water bottles is PET, or polyethylene terephthalate.
PET is a type of polyester that is strong, lightweight, and clear. It is also relatively inexpensive to produce, which makes it a good choice for mass production.
The other options are:
- Rayon: A regenerated cellulose fiber that is made from wood pulp. It is not as strong or as lightweight as PET, and it is more expensive to produce.
- Nylon: A synthetic polymer that is made from petroleum. It is strong and lightweight, but it is more expensive to produce than PET.
- Cotton: A natural fiber that is made from the cotton plant. It is not as strong or as lightweight as PET, and it is more expensive to produce.
Therefore, the most commonly used raw material for making plastic water bottles is B. PET
