practical
Even though Grendel seems as though he's being harsh by eating the exile, he is actually being practical. He says he tries to do things that are more considerate like befriending or ignoring him. However, since the exiles were treacherous, eating them is the most practical solution.
The cyclops effort to move the stone is compared to a simple task, showing his strength.
The answer is A. I hope this helped and have a good day!