All of the following statements regarding self-employment income/tax are true except:

A) Employees who have a business in addition to their regular employment are not subject to the self employment tax since FICA is withheld on their wages

B) Self employment tax is computed se[erately for married individuals filing joint returns

C) Independent contractors are subject to self employment tax on the amount of net earnings from the self employment activity

D) The self employment tax is imposed on net earnings from self employment over 400