Wolfgang is living with his parents in LA, and he is considering spending a month in his ancestral Berlin for the summer. He calculated that it would cost him $2,000 for travel (in total) and $3,000 for renting an apartment in Berlin. His other expenditures such as food and entertainment amount to $1,000, and these would be the same in LA and Berlin. Wolfgang has also been offered a Research Assistant position for the same month that would require him to stay in LA, and for which he would be paid $1,800. What is his total economic cost of going to Berlin?

Group of answer choices

$6,800

$5,000

$1,000

$7,800

$1,800