Determine the size of each PMOS and NMOS transistor for the NAND gate shown such that it matches the same delay as the inverter in the worst case. In the answers, first number shows the PMOS sizes and the second number shows the NMOS sizes of the NAND gate. (8/1; 4 /1) (2/1; 8/1) (8/1; 0.25/1) (2/1; 1/1) (2/1; 4/1)