What is the purpose of the Scene group in 3-D maps? to customize the 3-D map?

for different data using the same display
to customize the 3-D map for different displays with the same data
to customize the 3-D map by using different fonts with the same data
to customize the 3-D map by using a different country with the same data

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).