Problem:Using Multisim, design an 8-4-2-1 BCD code converter circuit to drive a seven-segment indicator.The four inputs to the converter circuit (A, B, C, D- See Figure P1) represent an 8-4-2-1 binary-coded-decimal-digit Assume that only imput combinations representing the digits 0 through 9 canoccur as inputs, so that the combinations 1010 through 1111 are don't cares. Design your circuitusing only two, three, and four-input NAND gates and inverters. Try to minimize the number ofgates required.