What's the relationship between audit and control are ?

<p style="text-align:left;">A - control part of the audit</p> <p style="text-align:left;">B - part of the audit oversight</p> <p style="text-align:left;">C - There is no relationship between audit and control</p> <p style="text-align:left;">D - audit and control synonym terms of the meaning of one</p>