There was no name for this virtue in Greek, and in English we use the same word both for the virtue and for the vice of excess (maybe we have trouble distinguishing them). The deficiency we just call “lack of ambition.” Good temper – is moderation in one's proneness to anger.
The answer would be A. This is because swiftlier is not a word and most swiftly is the wrong context for this sentence.
1. The Shepherds’ Swains shall dance and sing
2. thy mind may move
3. Melodious birds sing Madrigals
