$30.$ The Person entity has a field called Age of type int. An insurance company wants to display this fiel the UI using a Text Input which is only visible if the Age is not null. The development team is considering using one of the following PCF files: PersonsLV.pcf$,$ PersonDetailScreen.pcf$,$ PersonDetailDV.pcf$,$ and PersonInputSet.pcf All the PCF files have one root object defined: aContact : Contact Which two steps can the development team complete to implement this requirement? $($Choose two$)($Choose all correct answers$)$ Add the Text Input directly to the Person DetailScreen.pcf Add the Text Input directly to the PersonsLV.pcf Set the Text Input's valueType attribute to java.lang. Integer Set the Text Input's value attribute to Contact.Age Set the Text Input's visible attribute to $($aContact as Person$).$Age $!=$ null