As of 2008, the number of federally registered political action committees numbered over
a. 4,000.
b. 15,000.
c. 11,000.
d. 20,000

The answer is A. 4000

According to the federal Election commission,  the number of Federally registered political action committees are increased from 4,168 in July 2007, to 4,234 in January 2008

Concurrent jurisdiction is the ability to exercise judicial review by different courts at the same time, within the same territory, and over the same subject matter. for instance, a domestic violence matter may be heard in either a general civil court or a family court in the same county.i hope that this you : )