Which statement is not correct?

a. The essence of data consolidation as a data integration pattern is to capture the data from multiple, heterogeneous source systems and integrate it into a single persistent store (e.g., a data warehouse or data mart).

b. An important disadvantage of the consolidation approach is that it does not cater for historical data.

c. An ETL process typically induces a certain measure of latency, so the timeliness dimension may suffer, with the data being slightly out of date.

d. Besides the traditional set-up with ETL and a data warehouse, data lakes can also be considered an implementation of the consolidation pattern.