Cointegration in time series analysis refers to the:

A. Independence of two time series.
B. Joint stationarity of two or more non-stationary time series.
C. Absence of autocorrelation in a time series.
D. Seasonal patterns in time series data.

Correct Answer: B

Two time-series are said to be cointegrated if an economic or financial relationship exists between them, preventing them from diverging without bound in the long run.