<em>Adjectives</em> are the part of speech which qualifies the noun or pronoun. They may be placed before the qualifying word.
<u>For example,</u> this <em>cute</em> baby is eating an apple.
Whereas,<em> adverbs</em> refers to the set of words or word which qualifies the adjectives.
<u>For example,</u> the girls are speaking <em>softly</em>.
Hence, to form an adverb through adjective, they can be formed by adding –ly to the end of the word.
<u>For example,</u> they performed bad/badly in the exam
how did they perform? <em>badly</em>.
Hence, it is an adverb.
The one that does not have a strong influence on the American English in the Late Modern English period was A. Separation from England. Late Modern English is from 1800-present. The changes in vocabulary in this time was due to industrial revolution as well as scientific advancements and colonialism as well.