I think the third one since mothers doesn't originally have mothers(an extra s).
Well, it's a subjective thing. For me this type of attack ain't leads to a better life because after that it will take form of some kind of phobia which will inhibit further growth in that direction.
Posttraumatic growth is a kind of development take place after a sudden attack on life. In a very narrow cases this type of growth is seen but in most of them it is life threatening.
The verb of the sentence is "gazed", the subject of the sentence is the mountain.
