What does it mean: to live simply?

[Guest]

Test No. express/elem-2 "Take it in", question 7

As a student she has just enough money to get by on.

(a) live fully
(b) live simply
(c) live easily
(d) live quietly

Test No. express/elem-2 "Take it in", answer 7

As a student she has just enough money to live simply.

Correct answer: (b) live simply

Your answer was: incorrect
As a student she has just enough money to live fully.
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Hi!
please help me... what does it mean to live simply?

[Mister Micawber]

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The specifics of living simply vary among people, but basically, it means living without luxury, with no expenditures for items that are not necessities.
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Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber