I was down to choices B) and E) here and I ended up choosing E.
Is E wrong because you have to assume that the animals will ingest it in the first place? If they don't even ingest then it is irrelevant...is that right or am I totally off?
Answer choice E does not weaken the idea that the new rings will eliminate the threat of suffocation to wild animals.
So what if these things disintegrate and are somewhat poisonous/harmful to aquatic animals when they are ingested. We care about the suffocation issue.