Answer: A. Validation rule
Explanation:
Validation rules can be used to ensure that fields are populated because they can verify if the data being inputted meet the requirements of the administrators by returning a 'True' or 'False' response after testing. If the result is false, the user will be unable to move on until they adjust the field.
For example, Field length checks on websites are a Validation rule where you are only allowed to input a set number of characters and anything less or more will be denied, such as in the case of inputting phone numbers.
By including a Validation Rule that the LeadSource field of the Lead record be populated when a Lead is converted, the developer will be able to make sure that a user populates the Lead Source field prior to converting a Lead.
Answer:
function start(){
var age = readInt("Age: ");
if(age == 15){
println("Yes, you are a teenager.");
}else{
println("No, you are not a teenager.");
}
}
Explanation:
The best assumption to make is that there is a hidden partition and the drive needs to be further searched.