Correct Answer: A

Rationale: The correct answer is sentence A: 'The guests had a wonderful time at the party.' This sentence uses formal language suitable for most written communication. Choice B uses informal language with the word 'awesome,' which is more casual and conversational. Choice C, 'The partygoers wanted to hang out all night,' while not as informal as choice B, is still less formal than choice A. Choice D, 'The partiers were up for something more,' uses slang ('partiers') and casual language ('up for something more'), making it the least formal option among the choices.

Correct Answer: D

Rationale: The correct answer is 'Not enough.' The prefix 'hypo-' means 'under' or 'not enough,' as seen in the word 'hypokalemia,' which refers to low levels of potassium. 'Better' (choice A), 'Above' (choice B), and 'Too much' (choice C) are all incorrect because they do not convey the meaning of insufficient or low levels associated with hypokalemia.

Correct Answer: C

Rationale: The semicolon after "that" is used incorrectly; a comma should be used instead. Semicolons are typically used to join two independent clauses without a conjunction. In this sentence, the phrase "just like that" is not an independent clause, so a comma is more appropriate for separating it from the rest of the sentence. Choices A, B, and D all use commas correctly within the sentence.

Correct Answer: C

Rationale: In sentence C, 'Jorge assigned the class some math problems,' 'the class' is the indirect object receiving the direct object 'some math problems.' In this sentence, 'the class' is the recipient of the action, making it the indirect object. The other choices do not contain an indirect object. In sentences A, B, and D, there are no instances of an indirect object. Therefore, the correct answer is C.

Correct Answer: B

Rationale: The correct answer is 'Bucks.' In informal language, 'bucks' is commonly used as slang for dollars or money. This usage deviates from formal language and is considered slang. The other choices ('A', 'C', and 'D') are standard English terms and do not carry the same informal connotation as 'bucks.'