Consider a series that follows an MA(1) with zero mean and a moving average coefficient of 0.4. What

Consider a series that follows an MA(1) with zero mean and a moving average coefficient of 0.4. What is the value of the autocovariance at lag 1?

	a)	0.4
	b)	1
	c)	0.34
	d)	It is not possible to determine the value of the autocovariances without knowing the disturbance variance.