1. Create the following circuits in Logisim as you have seen the instructor do on the lectures. DO NOT use built-in MUX, ADDER or D-Latch for this.
   1. A 6-to-1 mux using basic gates (AND, OR)
   2. A four-bit full adder. Create a 1-bit adder first and then use it as a block to create a four-bit adder.
   3. A 1 bit gated D-Latch and then reuse it to as a block create a two-bit D-Latch.