On the other hand is the transition phrase that introduces a comparison
I believe the correct is the third option. It is important to preview sources before using them in your research because it reveals deeper concepts. Reading deeply the sources would allow you to have a deeper understanding of the sources and determine which parts of the sources are useful to your research.
Answer:
neglected by another
AND
to fall into decay
Explanation:
Thriftless implies when a person is spending money in a way regarded as wasteful or extravagant. From the passage, thriftless as used signifies a heir who spends money built by his father recklessly, hence the words from the text that helps to indicate the meaning of the word as used in the passage will be "neglected by another" and "to fall into decay". These shows thriftless and a nonchalant attitude towards money being spent or already spent.
Theme I believe I haven't done that for awhile