#include <bits/stdc++.h>
using namespace std;
void solve(void);
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  long long t = 1;
  while (t--) solve();
  return 0;
}
struct activity {
  long long marks, essay;
};
bool activity_compare(activity s1, activity s2) {
  if (s1.essay == s2.essay) return s1.marks < s2.marks;
  return s1.essay < s2.essay;
}
long long ncr(long long n, long long k) {
  long long res = 1;
  if (k > n - k) k = n - k;
  for (long long i = 0; i < k; ++i) {
    res *= (n - i);
    res /= (i + 1);
  }
  return res;
}
long long max(long long a, long long b) { return (a > b) ? a : b; }
long long min(long long a, long long b) { return (a < b) ? a : b; }
void solve(void) {
  long long t;
  cin >> t;
  while (t--) {
    long long n, x;
    cin >> n >> x;
    vector<long long> a(n), b(n), c(n);
    for (long long i = 0; i < n; i++) cin >> a[i];
    for (long long i = 0; i < n; i++) {
      cin >> b[i];
      c[i] = x - a[i];
    }
    vector<bool> flag(n, false);
    long long f = 0;
    for (long long i = 0; i < n; i++) {
      for (long long j = c[i]; j >= 0; j--) {
        auto it = find((b).begin(), (b).end(), j);
        if (find((b).begin(), (b).end(), j) != b.end()) {
          long long dist = (it - b.begin());
          b[dist] = -1;
          break;
        } else if (j == 0) {
          f = 1;
          cout << "No" << endl;
          break;
        }
      }
      if (f == 1) break;
    }
    if (f != 1) cout << "Yes" << endl;
  }
}
