Please consider the following C# code. class ChessPiece { private Color _color; public ChessPiece(Color color) {_color = color;} } class Pawn : ChessPiece { public Pawn(Color color) : base(color) {} } class ChessBoard { private ChessPiece[,] _board = new ChessPiece[8,8]; public ChessBoard() { for (int x = 1; x <= 8; x++) { _board[x,2] = new Pawn(Color.White); _board[x,7] = new Pawn(Color.Black); } } } Which of the following statements about the above code are true, and which are false? Please explain your answer briefly in each case. a) Class ChessPiece is a subclass of class Pawn. b) Class Pawn does not compile, because it uses the keyword base incorrectly. c) Class ChessBoard does not compile, because board is declared as an array of ChessPiece objects, but the code assigns Pawn objects to its elements. d) Although the code may compile successfully, it will fail at runtime because the indexes are computed incorrectly in the for-loop.