What is the best way to combine the information in the two sentences below? mercedes threw andrea a surprise birthday party last night. andrea is mercedes' best friend. a. mercedes threw andrea, mercedes' best friend, a surprise birthday party last night. b. mercedes threw andrea a surprise birthday party last night, but andrea is mercedes' best friend. c. mercedes threw andrea a surprise birthday party last night, when andrea is mercedes' best friend. d. mercedes threw andrea a surprise birthday party last night, andrea is mercedes' best friend.

The answer is A. Mercedes threw Andrea, Mercedes' best friend, a surprise party last night.  This choice uses an appositive ("Andrea, Mercedes' best friend,") to combine the two sentences.  An appositive is a phrase separated from the rest of the sentence by commas that describes something (in this case Andrea).

Choices B and C are incorrect because the uses of the words "but" and "when" to combine the sentences do not make logical sense.  Choice D is incorrect because it uses a comma to combine the sentences without a conjunction, creating a run-on sentence.

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racism is the belief in the superiority of one race over another, which often results in discrimination and prejudice towards people based on their race or ethnicity. the use of the term "racism" does not easily fall under a single definition.

explanation:

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