Processed foods make up 50 percent of the current
american diet. though they are inexpensive and
convenient, especially when you are in a hurry and just
don't have time to make dinner from scratch, processed
foods are unhealthy and contribute to a variety of health
problems. a diet high in processed foods such as boxed
macaroni and cheese, which are yummy but really not
good for you, has been linked to both diabetes and obesity.
processed foods are also sources of butylated
hydroxytoluene (bht) and butylated hydroxyanisole (bha),
two chemical additives that sound very scary and which
are known to cause cancer in humans.
which excerpt from the passage is the clearest example of fluff?

C. two chemical additives that sound very scary

Explanation:

The very purpose of articles such is this one (or any other text, that is) is telling something, conveying a message in a clear, concise manner, without irrelevant information.

Fluff, in writing, is ecatly that; artificial adding of irrelevant information, exaggerated use of description or excessive abuse of metaphors and other literary devices, usually with the purpose to make the text longer.

Although this passage is rather short, still there is an unnecessary excerpt "two chemical additives that sound very scary".

Other answers fit into this article, which is about unhealthy diet, a very important topic, and its consequences, some of which potentially lethal.

Answer C. is simply redundant to the rest of the text.

the statement that best explains why the tenth amendment reserves some rights and powers to states is that the framers believed in the principle of federalism. this principle says that some powers are in the hands of a centralized national government, while others are reserved for the governments of several states.