73. One of the most significant issues of online retailing is .
a. domain names
b. design of websites
c. direct selling
d. advertising
e. security
74. The types of planned shopping centers are
a. neighborhood, convenience, or regional.
b. convenience, community, or neighborhood.
c. community, regional, or national.
d. regional, community, neighborhood, lifestyle.
e. international, neighborhood, or national.