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Question:Which is the correct way to upcasting steps as the following code fragment?public class Asset{
  public string Name;

}

public class Stock : Asset{
  public long SharesOwned;
}

public class House : Asset{
  public decimal Mortgage;

}

A Stock s=new Stock();
Asset a=s; 
B Asset a=new Asset();
Stock s=a; 
C Stock s=new Stock();
Asset a=s;
Stock s=(Stock)a; 
D House h=new Stock();
Asset a=h;

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Question:Which is the correct way to upcasting steps as the following code fragment?public class Asset{ public string Name; } public class Stock : Asset{ public long SharesOwned; } public class House : Asset{ public decimal Mortgage; }

A Stock s=new Stock(); Asset a=s;

B Asset a=new Asset(); Stock s=a;

C Stock s=new Stock(); Asset a=s; Stock s=(Stock)a;

D House h=new Stock(); Asset a=h;

A

Question:Which is the correct way to upcasting steps as the following code fragment?
public class Asset{ public string Name; } public class Stock : Asset{ public long SharesOwned; } public class House : Asset{ public decimal Mortgage; }