Concept:"Prudence" refers to the quality of being careful and sensible in practical matters.
Explanation:In this sentence, financial prudence means handling money with care and avoiding wasteful spending.
A prudent person thinks before spending, saves for the future, and avoids unnecessary financial risks.
The word nearest to this meaning among the options is "caution".
"Caution" means carefulness and alertness to possible risks, which matches prudent financial behaviour.
The other options do not express this careful attitude.
Therefore, the correct choice is D.
Answer:D. caution