By Filing a Special PCT Patent Application in a Specially

By filing a special PCT patent application in a specially designated PCT office within one year of U.S. filing, and by designating certain countries, companies can preserve their right to file in those countries without further expense for ___ after the U.S. filing date; that will provide ______for test marketing the product.

A) 1 or 10 months and an additional 8 or 18 months
B) 20 or 30 months and an additional 8 or 18 months
C) 24 or 36 months and an additional 8 or 18 months
D) 40 or 50 months and an additional 28 or 38 months
E) 50 or 60 months and an additional 48 or 58 months