public Category(int id, Question[] q, string n) : this(id, q) { Name = n; }
public Category(int id, string n, Question q) : this(id, n) { Questions = new[] { q }; }
public Category(int id, Question[] q) : this(id) { Questions = q; }
public Category(int id, Question q) : this(id) { Questions = new[] { q }; }