Abank has three types of accounts: checking, savings, and loan. following are the attributes for each type of account: checking: acct no, date opened, balance, service charge savings: acct no, date opened, balance, interest rate loan: acct no, date opened, balance, interest rate, payment assume that each bank account must be a member of exactly one of these subtypes. using generalization, develop an eer model segment to represent this situation using the traditional eer notation, the visio notation, or the subtypes and supertypes notation, as specified by your instructor. remember to include a subtype discriminator.