Noah Webster,author of the original

Webster's Dictionary,believed that a
dictionaryshould contain more than the
definitions of words;therefore,he included their etymologies as well.

A. PROPERLY CONSTRUCTED SENTENCE
B. DANGLER
C. RUN-ON
D. COMMA-SPLICE

What do you think the answer is?

I THINK IT'S 3.
am I correct?

There is a better answer than #3.