Does thriftiness mean to save money with clipping coupons?

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #847 [color=blue]“Frugality”, question 8

Clipping coupons can actually improve the quality of your life, according to the author of “Simple Savings.” Jeremy Stone’s in using coupons has saved him enough money to take the family of four on vacations to Alaska, Hawaii, Nassau, and Belize in the last few years.

(a) smugness
(b) poverty
(c) thriftiness
(d) smudginess

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #847 [color=blue]“Frugality”, answer 8

Clipping coupons can actually improve the quality of your life, according to the author of “Simple Savings.” Jeremy Stone’s thriftiness in using coupons has saved him enough money to take the family of four on vacations to Alaska, Hawaii, Nassau, and Belize in the last few years.

Correct answer: (c) thriftiness
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Does thriftiness mean to save money with clipping coupon?