Which Fo the Following Has Not Promoted the Interpretation and Standardisation

Which fo the following has not promoted the interpretation and standardisation of international contractual terms?

A) the harmonisation of national commercial laws
B) the adoption of standard terms known as "Incoterms"
C) the continually evolving ongoing process for obtaining international standards
D) the recent adoption of uniform trade laws such as GATT
E) the widespread adoption of standard form contracts