A simple attribute and a single-valued attribute are used to define different things. Which of the following are true about them? Select all that apply. a) A single-value attribute is not necessarily a simple attribute b) A simple attribute can have only one value. For example, a person typically can only choose one of several gender types. c) A simple attribute cannot be further subdivided. d) A single-valued attribute cannot be further subdivided Which of the following can participate in a relationship? a) an entity b) an attribute c) an ERD d) a dependent IT The best way to resolve a multi-valued attribute is which of the following? a) Add new attributes to the original table to hold the additional values. b) Eliminate the attribute entirely c) Create a new entity composed of the original multi-valued components d) It is not possible to resolve a multi-valued attribute