Assuming the data was encrypted with YOUR public key, you'll need YOUR private key to decrypt it. That's answer e.
a and b are not solutions by themselves, of course you need to use the decryption algorithm, but a key goes with it.
c would be about symmetric encryption, but this is asymmetric, so different keys are used for encryption and decryption
d is possible, but it would mean anyone can decrypt it (after all the key is public), so then there's no point in encrypting it in the first place.
So e is the only logical answer.
It does look like a model
Hope it helps I mean just my opinion.
Materials
materials are the only physical thing
Answer:
Explanation:
Enter information,
Enter name: Bill
Enter roll number: 4
Enter marks: 55.6
Displaying Information,
Name: Bill
Roll: 4
Marks: 55.6
THIS IS AN EXAMPLE I HOPE THIS HELPS YOU!!