After reading the Tshidullo African Day Spa case study, which ONE of the following is an example of advertising for Tshidullo?

Select one:

a$.$

They won the second runner up at the $702$ Talk Radio and Softline Pastel Small Business Awards.

b$.$

They send out special offers to existing clients by means of SMS$.$

c$.$

They makes use of trade publications to sell services by means of advertisements.

d$.$

They adopt a direct marketing approach where all campaigns are based on individual clients.