Which of the following firms fits the definition of an "export marketer" the best?

a- Lorrie's sells jewelry, but serves customers in the US only.

b- Conny's sells its watches to countries all over the world.

c- Lenny's sells home decor. It carefully researches customer needs in various countries, identifies target markets, and tailors its market mix factors to market to the various customer segments in those countries.

d- Benny's sells the same shoes in the US and Canada.