Which two statements are correct about Send Logging? Choose 2 answers

A customer team wants to retarget subscribers who click on links of key items promoted across email campaigns. The customer has indicated the following:
* Emails will be built using a custom dynamic template for these messages.
* Links will vary over time and across campaigns.
* Click activity will be cross-referenced with subscribers' regional markets on a master subscriber data extension.
* Retargeting messages will dynamically populate content based on regional market.
In order for this solution to be viable, which skill set does the customer team need to possess?

A company collects subscriptions on its websites. It does the following:
* Compiles that subscription list in a database in the website content Management System (CMS).
* Posts this encrypted list to Marketing Cloud nightly at 11 p.m.
* Uses Marketing Cloud as the database of record.
* Sends up to five emails a week based on subscriber engagement with prior sends.
What automation sequence (excluding waits) should cover these requirements?

Customer Event:
* gather data through a tablet-based webform as part of a raffle into a data extension.
* Winner is randomly selected.
* After the event, an email should be sent to the participants to gather opt ins for marketing emails.
Define 2 things necessary:

A customer wants to send a quarterly reengagement email to subscribers who have NOT opened in the previous three months. The customer's plans are to:
* Use an existing Paste HTML email for the first send.
* Make only minor changes to the email creative for future sends.
* Send to the subscriber list.
* Deploy emails manually for now, but possibly automate in the future.
Which send method should be used?