You need to perform 16-bit x 16-bit unsigned , parallel multiplication using only adders and 8-bit 8-bit unsigned parallel multipliers . How many 8-bit x 8-bit multipiers do you need to perform the 16-bit 16-bit multiplication? Assuming you only have two-input adders (e.g the adder takes two input numbers and produces one output), how many will be needed? What should be the bit width of these adders ? Consider the most efficient implementation . Four 8-bit x 8-bit multipliers and two adders - one 16-bit adder and one 24-bit adder. Two 8-bit x 8-bit multipliers and two adders - one 8-bit adder and one 32-bit adder. Two 8-bit x 8-bit multipliers and four adders - one 8-bit adder, two 16-bit adders and one 24-bit adder. Four 8-bit x 8-bit multipliers and two adders - one 8-bit adder and one 12-bit adder