An export strategy is vulnerable when $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

Question $17$ options:

A$)$

product shipping costs to distant markets are high.

B$)$

currency exchange rates can shift quickly.

C$)$

importing countries impose tariffs.

D$)$

all the above.

E$)$

none of the above.