For the Questions Below, Consider the Following Representation of Grid

question 2

Multiple Choice

For the questions below, consider the following representation of grid and the maze code from Chapter 11.
Grid:
1 1 1 1 1 1 0 0
0 0 1 0 0 1 0 0
0 0 1 0 0 1 1 0
0 0 1 1 0 0 1 0
0 0 0 1 1 0 0 0
0 0 0 0 1 1 1 1
Code:
public boolean traverse(int row, int column)
{
if (valid(row, column) )
{
boolean done = false;
grid[row][column] = TRIED;
if (row == grid.length - 1 && column == grid[0].length - 1)
done = True;
else
{
done = traverse(row + 1, column) ;
if (!done) done = traverse(row, column + 1) ;
if (!done) done = traverse(row - 1, column) ;
if (!done) done = traverse(row, column - 1) ;
}
if (done) grid[row][column] = PATH;
}
return done;
}
Assume valid returns True if row and column are >= 0 and <= the grid's row length or column length and the entry at this position = = 1. And assume TRIED = 3 and PATH = 7
-If traverse is first called with traverse(0, 0) ; what will the first recursive call of traverse be?

• A) traverse(0, 0);
• B) traverse(0, 1);
• C) traverse(1, 0);
• D) traverse(1, 1);
• E) traverse(0, -1);

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