Answer:
Option (A) is correct i.e

The sale this year be $400000 .
Step-by-step explanation:
Formula

As given
A salesperson had 240,000 dollars in sales last year, which is 60% of the sales she had this year.
x = The salesperson’s total amount of sales, in dollars, for this year .
Here
Percentage = 60%
Part value = $ 240000
Total value = x
Put these value in the above


Solving the above



x = $400000
Therefore the sales this years be $400000.
Option (A) is correct .