It's B.teacher because it is a specific person.
Some reasons why mount everest is so difficult to climb are that there is not much oxygen up there and many other people visit the mountain. Another reason is ice can fall down the mountain and hit a climber.
(look up 360 expeditions for your website)
The plural possessive form of <em>women</em> is women's. This is because women is already the plural form of woman and to make it possessive you simply need to add the apostrophe "s".
