What statements are correct regarding Attribute Groups? (Choose two.)

Northern Trail Outfitters has been using Marketing Cloud for one of their brands for the last year and wants to migrate another brand to their portfolio. The two brands have contrasting target groups and identities so they need the emails and landing pages to have different styles that refrain from mentioning the other brand in any way.
What should be recommended?

Northern Trail Outfitters receives data from their point-of-sale system every night. The file is placed on their Enhanced FTP, but there is not a consistent time or naming convention for the file.
In which two ways should they set up their automation to import the data from the file on a nightly bais? (Choose 2 answers)

Northern Trail Outfitters (NTO) wants to use Marketing Cloud to solicit customer service feedback. If a customer indicates they are unhappy with the service they have received, NTO wants a new case to be created in Service Cloud. NTO is unsure of what is possible within Marketing Cloud but would like to use as much native functionality as possible.
What approach would a consultant recommend?

A subscriber asked to be removed from a customer's email list multiple times by replying directly to the customer's marketing message, but continues to receive emails.
Which steps will solve how replies are managed by the application? (Choose three.)