Answer:
D) Thrifty
Explanation:
Because right afterwards she says not as cheap as her mom, main word there is cheap. Then, in the following sentence it says her mom hasn’t bought a new pair of shoes I’m 20 years. That wouldn’t imply intelligent, unclean nor thoughtless.
It basically gave you the answer right after stating the word, it’s good to look out for that stuff. Thrift shops are usually used to get cheap stuff that will last a while, but it’s like really cheap.
Hope this helped, good luck! :D