Your company has an Office 365 Enterprise El subscription.
The company wants to implement an enterprise document collaboration and social networking platform that allows users to upload documents from their computers
and conduct informal polls.
You need to implement a solution that meets the requirements.
Which solution should you implement?

A.
Microsoft SharePoint document libraries

B.
Microsoft SharePoint surveys

C.
Microsoft Yammer

D.
Microsoft SharePoint newsfeeds

E.
Microsoft SkyDrive Pro

Explanation:
This is one of those questions where you have to read into it a little to see what they are looking for. Both SharePoint(Survey List/Excel Survey) and Yammer(Polls)
offer the ability to setup a survey/poll. Both SharePoint and Yammer also you to upload documents, so really either a Microsoft SharePoint survey or a Microsoft
Yammer Poll could satisfy the requirement.
The fact that the question states a “poll” and not a “survey” should be one clue and generally speaking people that are familiar with the 3 types of polling features in
O365 would probably say Yammer is a bit easier to setup and have users respond to.
I would go with Microsoft Yammer as the answer.
https://about.yammer.com/product/feature-list/
https://technet.microsoft.com/en-us/library/message-and-conversation-features-in-yammer.aspx