I went back and checked my answers

Select the most effective sentence.
Baxter worried about his English exam when he thought about it.
Baxter felt a pang of existential anxiety when he comtemplated his English exam.
When Baxter thought of his English test, he freaked out.
Thinking about the English exam, worry came over Baxter.

my new answer is B the 3 one is using slang as is the first one

Yes. B is the answer.

To determine the most effective sentence, you need to consider clarity, coherence, and appropriateness for the context. Let's analyze each option:

Option A: "Baxter worried about his English exam when he thought about it."
While this sentence conveys the meaning accurately, it lacks vividness and specific details.

Option B: "Baxter felt a pang of existential anxiety when he contemplated his English exam."
This sentence introduces a stronger and more descriptive statement about Baxter's emotions. It uses the phrase "pang of existential anxiety" to emphasize the intensity of his feelings, making it a more effective choice.

Option C: "When Baxter thought of his English test, he freaked out."
This sentence uses casual language and slang ("freaked out"), which may not be appropriate for formal writing or certain contexts. It also lacks the depth of emotion portrayed in option B.

Option D: "Thinking about the English exam, worry came over Baxter."
Although grammatically correct, this sentence is less effective due to its passive construction and lack of specificity.

Based on the analysis, option B is the most effective sentence. It conveys Baxter's emotions more vividly and maintains an appropriate level of formality in writing.