You have an Office 365 tenant that has an Enterprise E3 subscription.
You enable Azure Rights Management for users in the tenant. You need to define the methods that you can implement to encrypt and decrypt email message.
What should you do? To answer, drag the appropriate method to the correct action. Each method may be used once, more than once or not at all. You may need to
drag the split bar between panes or scroll to view content.)
Answer: 
Explanation:
I would say:
send encrypted email: Transport Rule (https://technet.microsoft.com/en-us/library/dn569287.aspx)
receive encrypted replies: connector (by elimination…)
View encrypted email: One-timepassword (https://technet.microsoft.com/en-us/library/use-a-one-time-passcode-to-view-an-encrypted-message.aspx)
I am not convinced that these are the answers based on https://technet.microsoft.com/en-us/library/dn569287.aspx
Send Encrypted email: Transport Rule https://technet.microsoft.com/en-us/library/dn569289.aspx
Receive encrypted email : Organization account https://technet.microsoft.com/en-us/library/dn569287.aspx
View encrypted email: organization account https://technet.microsoft.com/en-us/library/dn569287.aspx
Although a one-time password can be used to view encrypted emails if an organization account is not available.
correct
Correct:
One-time password
connnector
text message
Dani, Why txt message? https://technet.microsoft.com/EN-US/library/use-a-one-time-passcode-to-view-an-encrypted-message.aspx shows that the passcode is sent via email. Have any other references I can read?
Box 1: Transport rule
As an administrator, you can create mail flow rules, also known as transport rules, to enable Office 365 Message Encryption. This lets you encrypt any outgoing email messages and remove encryption from encrypted messages coming from inside your organization or from replies to encrypted messages sent from your organization.
Box 2: Organization account
Box 3: Organization account
An encrypted email message arrives in the recipient’s inbox with an HTML attachment. After opening the attachment, recipients see instructions for opening and viewing the message. Regardless of their type of email service, the experience is the same. The recipient can choose to sign in with a work account associated with Office 365, with a Microsoft account.
References:
https://technet.microsoft.com/en-us/library/dn569289.aspx
https://technet.microsoft.com/en-us/library/dn569287.aspx