<em>Bonjour,</em>
<em>Il faut</em> "monter"<em> en haut des escaliers pour arriver à son appartement.</em>
You would most likely feel pretty bad that you are not there with since you are her best friend.If you and your friend are always together,then your friend feels almost homesick because to her you are part of her home almosts.
I think its B because Tu is usually used when asking a question
