Katie's laptop was lost at the airport in Chicago. Katie does not worry about unauthorized access to data on her computer because

She always uses two$-$factor authentication.

She can remotely delete all the data on her computer as soon as her flight lands in Mumbai.

She had enabled full$-$disk encryption.

She enabled a cloud data back$-$up solution on her computer.

Airports have good physical security and cameras to see who took the laptop.