Nya's gross weekly pay is = $ 1440
Since, it is not given that for how many days a week Nya works and for how long she will work and how old is Nya.
So, lets suppose Nya is 25 years old and will work for 35 more years till age 60 and the salary remains same for the next 35 years.
Lets assume Nya saves half the amount she earns, it will be = $720
So, Nya saves 720 weekly, so yearly she will save =
as there are 52 weeks in a year.
So, in 35 years she will save =

So, this value is close to option D. Hence, option D can be the answer.