Nafta differs from that of the european union in that a. nafta has purely economic goals b. nafta issues a universal currency c. nafta holds popular election d. nafta deals with foreign policy

The correct option is A) "NAFTA has purely economic goals"

Explanation:

NAFTA is a free trade agreement between USA, Mexico and Canada and its main objective is to eliminate trade barriers among those countries.

NAFTA does not issue a common currency, and does not deal with foreign policy issues.

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: