Answer:
I would personally go with the last option, On Top of Old Smo - key all cov -ered with snow
Explanation:
I believe this is correct because In English, there are unstressed, and stressed syllables which are generally indicated in several ways. In traditional english poetry, this generally has to do with the concept of rhythm in a metric line which is a measurement of small groups of sylables called feet established by the words in the line. This is all formed by an iambic meter which is a metrical pattern in the line of a verse or a set of sentences. This method is known as Scansion.