Sentence b. has the cause underlined.
Our apartment is on the 11th <u>floor</u>; therefore, we have a great view of the city.
The effect of having a 11th floor apartment is that they <em>have a great view of the city.</em>
Answer:
where ???
Please mention full question
Google it and look pictures of each generation of the chrome casts.
The signal word <em>however </em>is a contrast word.
You use it to show something opposite of what you have previously said.