/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc=new Scanner(System.in);
		int t=sc.nextInt();
		while(t-->0)
		{
			int n=sc.nextInt();
			int k=sc.nextInt();
			String str=sc.next();
		    int ones=0,zeros=0;
			for(char ch:str.toCharArray())
			{
 
			  if(ch=='0')
			  zeros++;
			  else
			  ones++;
 
			}
			int min=Math.abs(zeros-ones);
			int unpaired=(n- 2*k)/2;
			int max= ((zeros)+(ones))/2;
		    // if(zeros>=unpaired && ones>=unpaired && (zeros-unpaired)%2==0 && (ones-unpaired)%2==0)
		    if((max-min)%2==0 &&( max-min)>=k )
			System.out.println("YES");
			else
			System.out.println("NO");
		}
	}
}

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6
6 2
000000
2 1
01
4 1
1011
10 2
1101011001
10 1
1101011001
2 1
11