Clementine Import-Export,Inc.,has a language-proficiency test for its sales representatives in Latin America.Part of the test requires that sales representatives to be able to ask and answer in Spanish basic questions about prices,quantities,shipping dates and product characteristics.This performance standard can be classified as all of the following EXCEPT
A) the standard trait-based.
B) the standard is job-related.
C) the standard is observable.
D) the standard is non-numerical.