It seems that you have already filled the correct pronoun in the blank provided. Yes, the correct answer to complete this sentence is the pronoun "this". The pronoun "this" is an example of a demonstrative pronoun. Other demonstrative pronouns also include these, those, and that. Hope this answer helps.
Waterfall, I think
Keeps going
Answer:
A. They are compelled by something appealing but wasteful, resulting in their demise
Explanation:
The word "profligacy" means to be excessively wasteful of resources. So, the best interpretation of the following quote is that the people are compelled by something appealing but wasteful, resulting in their demise.
Because from the quote, the people are described as "not knowing what to do with their gold" which indicates that they had no concrete and workable plan on how to invest their gold and they became wasteful and perished.
C.....................................