No one can answer these for you... it’s based on what YOU are writing about
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.
Frequent frustrated fluctuating
I believe the correct answer is
A. <span>by professing his love for Gwendolen and promising to buy a house for her</span>
I believe its exposition and rising action.