I would choose option three for a number of reasons.In this sonnet, the muse the persona addresses is required because he feels time is going fast.Though the words seem to be describing the power of love or the meaning of having someone to love as making one immortal, the persona here is worried about time...."<em>give my love fame faster than Time wastes life..." So you prevent´st his scythe and crooked knife..."</em>As a conclusion, the central idea of the sonnet is that the speaker feels his love is growing old fast, too fast , so he needs his muse right now..."<em>Rise , resty muse..".."Return .."</em>