Q. Two 4-bit comparators are cascaded to form an 8-bit comparator. The cascading inputs of the most significant 4 bits should be connected .

• (A) to the outputs from the least significant 4- bit comparator
• (B) to the cascading inputs of the least significant 4- bit comparator
• (C) a = b to a logic high, a < b and a > b to a logic low
• (D) ground