Explanation:
> "The Bible's prodigal son became quite wealthy eventually."

In this context, "prodigal" refers to someone who spends money recklessly or extravagantly, often leading to a loss of wealth before eventually returning or changing behavior.

Now, let's look at the options:

- A. prestigious — This means having high status or reputation, which is unrelated to "prodigal." Incorrect.
- B. phlegmatic — This means calm or indifferent, which does not fit the meaning of "prodigal." Incorrect.
- C. errant — This refers to someone who behaves wrongly or strays from the right path, which could be loosely related, but not the best fit for "prodigal" in this context. Incorrect.
- D. pecuniary — This refers to anything related to money, but it doesn't capture the reckless or extravagant nature of "prodigal." Incorrect.
- E. extravagant — This means spending resources lavishly and recklessly, which is the meaning of "prodigal." Correct.