The results of the estimation of monthly revolving credit outstanding (RCO) on the one-period lagged values for RCO from January 2016 through December 2018 are presented in the following table. Regression Results for Outstanding Revolving Credit Study

Model: RCOt=b0 + b1RCOt-1 + t
R2	0.952643
Adjusted R2	0.951208
Standard error	9.261452
Observations	35
	Coefficients	Standard Error	t-statistic	p-Value
Intercept	-34.0019	24.19417	-1.40537	0.169255
Lag 1	1.065697	0.041362	25.76512	<0.0001

What type of time-series model was used to produce the regression results in the table above?

a.

AR model

b.

Trend model with a drift

c.

Heteroskedasticity (H) model

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