Answer the following questions using IE Crow's Foot notation.

Examine the subscription form shown in Figure $1.$ Using the structure of this form, do the following:

Figure $1-$ Subscription Form

Create a model with one entity. Specify the identifier and attributes.

a$.$ Create a model with two entities, one for customer and a second for subscription. Specify identifiers, attributes, relationship name, type, and cardinalities.

The $E-R$ Crow's Foot model above is based on the following data:

$\backslash$table$[[$RELATIONSHIP$,$CARDINALITY,$],[$PARENT$,$CHILD,TYPE,MAX,MIN$],[,,,,]]$

Under what conditions do you prefer the model in A to that in B$?$

Under what conditions do you prefer the model in B to that in A$?$