It may be inferred that the author would classify which of the following modes of behavior. as a referential symbol that originally derived from a condensation symbol?
A.
Vocalizing inarticulately in order to express rage without using words
B.
Writing a pictographic character that vaguely resembles a physical object
C.
Flag signaling where the flag movement relies on an existing arbitrary code
D.
The use of right-lane highways by general agreement
E.
Genuflection to indicate one's willingness to serve in a situation