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:

Subscription Form

$1$ year $(6$ issues$)$ for just $$18-20\%$ off the newsstand price. $($Outside the U$.$S$.$ S$21/$year$-$U$.$S$.$ funds, please$)$

$2$ years $(12$ issues$)$ for just $$34-$save $24\%$

$($Outside the U$.$S$.$ S$40/2$ years $-$U$.$S$.$ funds, please$)$

Name

Address

City State Zip

My payment is enclosed. $$ Please bill me$.$

Please start my subscription with $$ current issue $$ next issue.

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 $A?$