I think the correct choice is D such that the sentence becomes: <span>Jan's speech was interesting and lively; Tim's was a bit too long. This is because semicolons are typically used to link two independent clauses that are very much related. In this case the two independent clauses are:
(1) Jan's speech was interesting and lively
(2) Tim's was a bit too long</span>
Answer: Blanca and Harris (owners of the factory) closed all doors in the building so nobody can escape the factory. Citizens then protesting saying Murders! Murders! They killed my child. Then they were found guilty.
Answer: (d) I like trying new activities; therefore, I'm looking forward to learning to snowboard.
Explanation: a conjunctions is a word that joins or connects sentences or phrases, the word "therefore" is an adverb that acts like a conjunction (a conjunctive adverb). When we use words like "therefore", "however", "moreover" etc, to connect to independent clauses, we need to put a semicolon before those words, and a comma after: "I like trying new activities; therefore, I'm looking forward to learning to snowboard.