When transforming an ID-dependent E-R data model relationship into a relational database design and the child entity is designed to use a surrogate key, then ________
A) the parent entity must also use a surrogate key
B) the relationship remains an ID-dependent relationship
C) the relationship changes to a non-ID-dependent relationship
D) A and B
E) A and C
C
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Straddle positions ________
A) help firms to analyze who their competitors are B) allow brands to expand their market coverage and potential customer base C) are a necessity while creating a firm's vision and mission statement D) assist firms in collecting information on competitors that will directly influence their strategy E) are ambiguous moral principles behind the operation and regulation of marketing
Under oligopolistic competition ________
A) the market consists of a single dominant seller B) the market consists of numerous small sellers C) the market consists of many buyers and sellers who trade over a range of prices rather than a single market price D) sellers are typically unresponsive to competitors' pricing strategies and marketing moves E) the market consists of only a few large sellers