Answer:
The correct answer is Oxford English Dictionary.
Step-by-step explanation:
The best tool to access the etymological development of a word is Oxford English Dictionary (OED).
It is the most complete dictionary with the most etymological information of each word that the English language has today.
It includes combinations, derivatives, expressions, etymologies and pronunciations, among other things.
While Roget's Thesaurus is a dictionary for semantically linked words, or synonyms.
The Dictionary of American Slang is used to find slang words, their meanings, and dates of the American language.
And, Shorter Oxford English Dictionary is a shorter version of the Oxford English Dictionary, therefore it does not contain the same detailed information.