a) 3-digits numbers could be made from \( \mathbf{0 , 1}, \mathbf{2} \) ? b) 4-digits numbers could be made from \( \mathbf{0 , 0 , 2 , 3} \) ? c) 5-digits odd numbers and total could be made \( \mathbf{0}, \mathbf{0}, \mathbf{3}, \mathbf{3}, \mathbf{4} \) ? d) 6-digits numbers could be made from \( \mathbf{0}, \mathbf{0}, \mathbf{1}, \mathbf{1}, \mathbf{2}, \mathbf{4} \) ?