Which sentence uses a comma in a way that is considered contested usage?

Select two correct answers.

Zagreb, Sarajevo, and Dubrovnik are all major cities in the Balkan region of eastern Europe.

Faith, Millie's best friend from summer camp, is coming to visit in a few weeks.

Stephen did not understand the question, and so Gina tried to explain it to him more clearly.

We are passing through New Orleans, Louisiana right before we stop in Houston, Texas.

Winston Churchill famously said, "It is not in our power to anticipate our destiny."

The sentence that uses a comma in a way that is considered contested usage are:

1) Faith, Millie's best friend from summer camp, is coming to visit in a few weeks.
2) Winston Churchill famously said, "It is not in our power to anticipate our destiny."

In which sentences should the pronoun who be replaced with whom to reflect correct usage?

Select the two correct answers.

Who do you think should be the next president of the science club?

Dorothy is a professional pastry chef who can bake a great Chantilly tart.

Who wants to help clean the pool so that it will be ready when summer begins?

The water from the faucet has turned brown, but I'm not sure who to call about it.

Bryan, who loves playing soccer, was disappointed when he was cut from the team.

The sentences in which the pronoun "who" should be replaced with "whom" to reflect correct usage are:

1) The water from the faucet has turned brown, but I'm not sure whom to call about it.
2) Bryan, whom loves playing soccer, was disappointed when he was cut from the team.

The two correct answers are:

- Faith, Millie's best friend from summer camp, is coming to visit in a few weeks.
- We are passing through New Orleans, Louisiana right before we stop in Houston, Texas.

The two sentences that use a comma in a way that is considered contested usage are:

1. Zagreb, Sarajevo, and Dubrovnik are all major cities in the Balkan region of eastern Europe.
2. We are passing through New Orleans, Louisiana right before we stop in Houston, Texas.

In both of these sentences, the comma before the last item in the list (Dubrovnik and Texas, respectively) is the one that is considered contested usage. This is because the use of a comma before the conjunction ("and") in a list is known as the "Oxford comma" or "serial comma". Its usage is a matter of style and can vary depending on the specific style guide or personal preference.