'Look after' means to take care of or be in charge of something. Therefore option E is the correct answer.
Options A, B, C and D are incorrect because 'think in perspective' means to think about a situation or problem in a wise and reasonable way, 'evaluate' means to judge or calculate the quality, importance, amount, or value of something, 'point towards' means to make it seem likely that a particular fact is true or that a particular event will happen and 'retrace one's step' means to go back to a place in the same way that you came.