During the Preindustrial Age,most Advertisements Took the Form of Signs

During the preindustrial age,most advertisements took the form of signs with symbols such as a beer tankard indicating a tavern because

A) most people were illiterate and could not read.
B) most firms could not afford more sophisticated advertisements.
C) local laws prohibited advertising in newspapers.
D) most churches would not approve other forms of advertising.
E) signs and symbols were considered lucky.