Answer:
B is the correct answer.
Explanation:
A. is incorrect because we never start a grammatically correct sentence with the word "and."
C. is incorrect because "I was nervous." is not part of the cause and affect relationship of the other two parts of the sentence.
B. is correct because "I saw the accident." is the precedent. The antecedent is "I was asked to testify." Therefore the relationship is a cause and affect.
Answer:
C. There is no error.
Explanation:
A. is incorrect because it contains a comma splice which is the use of a comma to join two independent clauses: "I saw the accident, I was asked to testify."
B. is incorrect because it contains a fragment: "Because I saw the accident" does not contain even one independent clause and cannot stand by itself as a sentence.
C. is correct because the sentence in question is a compound-complex sentence as it contains two independent clauses and one dependent clause and uses punctuation correctly.
