12. which is a fused sentence?
lara will ask the group questions that she has prepared in advance.
kyle will listen to group members and take notes on what they say.
ted has not finished reading the assignment because he has been sick.
josie will lead the discussion it is about a topic she knows well.

D. Josie will lead the discussion it is about a topic she knows well.

Explanation:

A fused sentence also exemplifies a run-on sentence that lacks a proper conjunction or punctuation mark(comma or semicolon) where the two independent clauses run together. These sentences are generally treated as errors that can be rectified by adding an appropriate punctuation mark or a subordinate or coordinate conjunction.

Thus, the sentence that exemplifies this claim would be the last option "Josie will lead the discussion it is about a topic she knows well" which would read as following after fixing this error:

"Josie will lead the discussion as it is about a topic that she knows well".

its repetition emphasizing that the chain is his own. sorry if i am wrong.