The answer is C.
The line of reasoning goes
1. The maker of Polyethylene is making profit margins means they are charging more for the same polyethylene than they were charging before when the production was low.
2. the makers of plastic products are the customers to the makers of polyethylene(who are getting polyethylene as a by product of natural gas extraction).
since the makers of plastic products have to bear the extra cost( due to the profit margins of polyethylene makers ) they are not
...
The line of reasoning goes
1. The maker of Polyethylene is making profit margins means they are charging more for the same polyethylene than they were charging before when the production was low.
2. the makers of plastic products are the customers to the makers of polyethylene(who are getting polyethylene as a by product of natural gas extraction).
since the makers of plastic products have to bear the extra cost( due to the profit margins of polyethylene makers ) they are not
...






