What is the correct option and why?

[Quentin]

Do you have access to SAS?  You will have a very hard time learning SAS, without being able to run SAS code as you learn.  Even if you manage to pass a certification test based on learning from books and trainings, you'll have a hard time programming if you haven't actually used SAS.  The good news is you can get access to SAS for free, so you can run SAS code as you learn.  You can go to SAS OnDemand for Academics: https://www.sas.com/en_us/software/on-demand-for-academics.html  .  This is free access to SAS, for anyone who wants to learn SAS, even if you're not enrolled in a college or university.  With that, you will be able to run some of this code yourself, and then explore the results.  If the results are surprising to you or hard to understand, then you can ask about them in the community.

[Nipun22]

first of all, option D is not correct as you are saying that there is a space because that would be way too easy to dodge the question 

secondly, having a space at a very obvious statements is easily understood that it is a typo

and last thing in the original question the input dataset is not mentioned question to be solved without that only

so if you could answer that would be great else kindly ignore the question please.

[PaigeMiller]

So show us the correct information with no typos. Then people (including me) here will be happy to help. Otherwise, we are guessing and making stuff up, and can't really help you.