The following question consists of an incomplete sentence or a sentence that is split into four parts. All the four parts are jumbled up and are named P, Q, R and S. These four parts are given in their proper order. Arrange the jumbled parts of the sentence and find out which of the four combinations from the given options will correctly complete the sentence.

Today memory is widely regarded as a useful aid to survival. _____________________________________. However it is not what we grasp but what we fail to – forgetting a file, key points at an interview- which causes stress.

P. In this early period a good memory was a prerequisite for success and poets like Homer memorized their work before it was ever written down.
Q. If we have to remember everything will it not increase the feeling of stress?
R. Some people however are of the view that having an exceptional memory in a world of high pressure is a disadvantage.
S. To our ancestors though in the absence of the printing press it was much more-it was the slate on which history was recorded.