Вы услы­ши­те ин­тер­вью два­жды. Вы­бе­ри­те пра­виль­ный ответ 1, 2 или 3.

According to Edward, it is psychologically hard for a mountaineer ...

1)  not to be afraid of heights.

2)  to see the summit is far.

3)  to survive without oxygen.