What Result Set Is Returned from the Following Query

Multiple Choice

What result set is returned from the following query?
Select customer_name,telephone
From customers
Where city in ('Boston','New York','Denver') ;

A) The customer_name and telephone of all customers
B) The customer_name and telephone of all customers living in either Boston, New York or Denver
C) The customer_name and telephone of all customers living in Boston and New York and Denver
D) The customer_name of all customers living in Boston, New York or Denver