MCQOPTIONS
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MCQOPTIONS
| 1. |
A supertype/subtype hierarchy is which of the following? |
| A. | Each subtype has only one attribute. |
| B. | Each supertype has only one attribute. |
| C. | Each subtype has only one supertype. |
| D. | Each supertype has only one subtype. |
| Answer» D. Each supertype has only one subtype. | |