Predictive maintenance ___________________.

		a.)utilizes the predictions based on laboratory testing of equipment to define when preventive maintenance should be initiated
	b.)	utilizes a variety of diagnostic tools to evaluate equipment condition in order to properly adjust the frequency of preventive maintenance work
	c.)	utilizes predictions based on the experience of other owners of similar equipment to decide when preventive maintenance should be performed
	d.)	is performed as per the recommendations of the equipment manufacturer on a set schedule