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commas are used to separate two or more adjectives.

conjunction
coordinate
compound
unequal

when combining two independent clauses, a comma must be placed

both before and after the conjunction
after the conjunction
before the conjunction
between the two indpendent clauses in place of the conjunction

a comma should not be used to

separate compound elements
set apart an introductory phrase
separate narration from quotations
set apart introductory words or interjections

1. Coordinate adjectives are the adjectives which are placed in sequence with another adjective to describe or to modify a noun. Hence, commas are used to separate two or more coordinate adjectives.

2. When combining two independent clauses, a comma must be placed before the conjunction.

Independent clauses refer to the groups of words which can stand independently and create a meaning. An independent clause has a subject and verb.

For example, I went to the market, but forgot to take money.

In the above independent clause comma is placed before the conjunction 'but'.

3. A comma should not be used to separate compound elements.

Commas are frequently used punctuation in a sentence, hence they are used to create a short pause in a sentence.

Hyphens are used to show a compound sentence and not commas.

are you asking for an essay and whats the story?

answer: #1 is (a) however

explanation: