Among the employees who are married, how many of them have a western name style?
married refers to MaritalStatus = 'M'; western name style refers to NameStyle = '0';
SELECT COUNT(T1.BusinessEntityID) FROM Employee AS T1 INNER JOIN Person AS T2 ON T1.BusinessEntityID = T2.BusinessEntityID WHERE T2.NameStyle = 0 AND T1.MaritalStatus = 'M'