Consider the diagram below then select the statement that is most correct about the diagram:

a$.$ There is a composition relationship between the Smartphone class and the Battery class.

b$.$ A Camera is dependent on the Battery $($based on the diagram$).$

c$.$ A Music Player is a part of the Smartphone and is dependent on the existence of $($cannot exist without$)$ the Smartphone.

d$.$ There is an aggregation relationship between the Smartphone and the IMEI number.