The subject is sets. The question is: What is the relationship between set A and set B if A = {x|x has an annual salary that exceeds one million dollars} and B={x|x plays professional sports}? The options are: a. disjoint (A and B have no elements in common). b. proper set (Every element of one set is also an element of an element of the other). c. equal (A and B have exactly the same elements). d. overlap (A and B share some elements but each has unshared elements). Isn't the correct answer a. because A and B have no elments in common? If not, why not? What am I missing here?

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