The correct answer is "The same sum of money means different things to different people"
here we can see how he shows through examples how every person according to their kind of life would use this money in different ways to cover their lack of whatever they may need.
The other options are not correct because in the first one it is stated as a fact that you can not do much with money when in the excerpt are presented many valuable examples.
The second one says that people shouldn't worry about making money, information that was never mentioned in the excerpt
and option 3 says that money doesn't buy happiness when in the excerpt we can see how several examples talk about giving happy moments to people. it is not about buying happiness but you can sweep some worries and problems away.