Write an Expression in Terms of the Given Variable(s)that Represents

Multiple Choice

Write an expression in terms of the given variable(s) that represents the indicated quantity.
-Joel's total earning after 3 years if the first year his salary was s dollars, the second year it was $7000 higher, and the third year it was twice as much as the first year.

A) 4s + 7000 dollars
B) 3s + 7000s dollars
C) 3s + 7000 dollars
D) 2s + 7000 dollars