(c)there is evidence of a serious deficiency in the work of the audit authority.

there is a serious deficiency in the quality and reliability of the monitoring system or of the data on indicators.

there is a serious deficiency in the quality and reliability of the monitoring system or of the data on common and specific indicators

(a)there is evidence to suggest a serious deficiency and for which corrective measures have not been taken;

(a)there is a serious deficiency which has put at risk the support from the Funds already paid to the programme;